FORM 

APPROVED 

 OMB

CONTROL 

N

O. 2040 - 0213

 EXPIRATION 

DATE: 12/31/02

Detailed Industry Questionnaire:

Phase II Cooling Water Intake

Structures

Traditional Steam Electric Utilities

January 2000

U.S. Environmental Protection Agency

Office of Wastewater Management

Washington, DC

Notice of Estimated Burden

EPA estimates that completion of Detailed Industry Questionnaire: Phase II Cooling Water

Intake Structures will require an average of 156 hours per facility. This estimate includes

time for reading the instructions and reviewing the information necessary to respond to the

questionnaire form. Any comments regarding EPA’s need for the information, the accuracy

of the provided burden estimate, and suggested methods for reducing respondent burden

(including the use of automated collection techniques) should be addressed to: Director,

Regulatory Information Division, Office of Policy, Planning, and Evaluation, Mail Code

2137, U.S. EPA, 401 M Street, SW, Washington, DC 20460. Please include the OMB

Control Number, listed in the left-hand margin on this page, with any correspondence.
 
Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Certification Statement

Instructions

The individual responsible for directing or supervising the preparation of Detailed Industry

Questionnaire: Phase II Cooling Water Intake Structures must read and sign the Certification

Statement below before returning the completed documents to U.S. Environmental Protection

Agency. The certifying official must be a responsible corporate official or his (or her) duly

authorized representative. The Certification Statement must be completed and submitted in

accordance with the requirements contained in the Code of Federal Regulations at 40 CFR 122.22.

I certify under penalty of law that the attached questionnaire was prepared under my

direction or supervision in accordance with a system designed to ensure that

qualified personnel properly gathered and evaluated the information submitted. The

information submitted is, to the best of my knowledge and belief, accurate and

complete. In those cases where we did not possess the requested information, we

have provided best engineering estimates or judgments. We have, to the best of our

ability, indicated what we believe to be company confidential business information

as defined under 40 CFR Part 2, Subpart B. We understand that we may be required

at a later time to justify our claim in detail with respect to each item claimed

confidential. I am aware that there are significant penalties for submitting false

information, including the possibility of fines and imprisonment as explained in

Section 308 of the Clean Water Act (33 U.S.C., Section 1318).

Signature of Certifying Official Date

( )

Printed Name of Certifying Official Telephone No.

Title of Certifying Official
Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

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Table of Contents

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities i

Table of Contents

Certification Statement

General Information and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Part 1: Scoping Data .................................................................. 1

Part 2: Technical Data ................................................................ 1

Section A: Plant Profile Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Section B: Sources of Cooling Water and Intake Arrangements . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Section C: Cooling Water Intake Structure Technology Information . . . . . . . . . . . . . . . . . . . . . . . . 23

Section D: Environmental and Technology Studies and Mitigation Activities . . . . . . . . . . . . . . . . . 51

Section E: Planned Cooling Water Intake Structures and Changes to Capacity . . . . . . . . . . . . . . . 63

Part 3: Economic and Financial Data .................................................... 1

Section A: General Information About the Plant ....................................... 1

Section B: Information for Steam Electric Generating Units .............................. 5

Glossary to Questionnaire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1
ii Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures— Traditional Steam Electric Utilities

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General Information and Instructions

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities iii

General Information and Instructions

Why This Questionnaire?

The U.S. Environmental Protection Agency (EPA) is currently developing regulations to be processed

under Section 316(b) of the Clean Water Act, 33 U.S.C. Section 1326(b). Section 316(b) provides that any

standard established pursuant to Sections 301 or 306 of the Clean Water Act (CWA) and applicable to a

point source requires that the location, design, construction, and capacity of cooling water intake

structures reflect the best technology available (BTA) for minimizing adverse environmental impact.

Answers to the enclosed technical questionnaire will help EPA better understand the design and operation

of cooling water intake structures at industrial facilities that are subject to Section 316(b).

Data from this detailed questionnaire are not intended to identify whether a specific facility’s cooling water

intake structures are having an adverse environmental impact. Moreover, questionnaire responses are not

intended to identify whether a specific facility is employing BTA with respect to minimizing adverse

environmental impacts from cooling water intake structures, though they may help EPA determine BTA

options for various classes of facilities. The questionnaires are simply tools for characterizing some of the

following: type and nature of facilities using cooling water, specific uses of cooling water, design and

configuration of cooling water systems and cooling water intake structures, types of technologies being

used at intake structures, and whether facilities have previously evaluated the environmental impacts of

their cooling water intake structures. Data from the questionnaires will be factored into ongoing research

being conducted by EPA that is more specifically designed to determine the nature of adverse impacts and

the types of control technologies that might minimize such impacts. All of EPA’s research efforts will feed

the development of regulatory options, some of which will subsequently be fashioned into a proposed

rulemaking that will be put forth for public review and comment.

Please note that it is not the intent of EPA to require facility personnel to go to unusual lengths to retrieve

information to respond to this questionnaire. Responses should be based on data that can be accessed from

plant records with reasonable diligence.

The enclosed plant-level questionnaire consists of three parts. Part 1 requests general plant information,

such as plant name, location, operating status, Standard Industrial Classification (SIC) codes, and

National Pollutant Discharge Elimination System (NPDES) permit status. In addition, this part screens

plants from the survey that may not use cooling water for contact or noncontact cooling purposes or are

not directly withdrawing cooling water from surface water and, thus, are not subject to Section 316(b).

Part 2 requests plant-level technical data. Section A requests profile information on the plant’s cooling

water systems, cooling water intake structures, cooling water discharge outfalls, and the plant’s water

balance diagram. Section A first requests basic design and operational data for each of the plant’s cooling

water systems that are presently operating, temporarily offline, or planned or under construction.

General profile data are then requested for the plant’s intake structures that directly withdraw cooling water

from surface water. The type of data requested for the cooling water structures includes the following:
iv Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

plant-designated names and numbers, latitudes and longitudes, total design intake flows, proportion of

total flows used for cooling, and activities for which cooling water was used in 1998. Section A requests

some very basic data on cooling water discharge outfalls, such as plant-designated names or numbers and

latitudes and longitudes at the point of each discharge outfall. The information from this section will be

related to other data requested throughout the questionnaire to give EPA an understanding of the plant’s

general design and use of cooling water. Finally, a water balance diagram is requested to provide EPA

with an understanding of how cooling water use and discharge practices relate to the plant’s general water

use practices. The diagrams will be used to analyze other data requested throughout the survey.

Section B requests information on the type of surface water sources being used by plants to provide cooling

water. The configuration of the plant’s intake structures is requested, such as whether intake canals/

channels are used, whether the intake structure incorporates a bay or cove, and whether the intake structure

is at the shoreline or offshore. Depth of the water source at the withdrawal point is requested in addition

to the average distance of the intake structure below the water surface. The section concludes by

requesting information on whether sensitive aquatic ecological areas are within an area that is influenced

by the plant’s intake structures, if such information is known. The data from this section of the

questionnaire will enable EPA to characterize the distribution of plants that have cooling water intake

structures and the types of water bodies from which cooling water is being withdrawn. 

Section C requests basic design and operating data about the technologies being used at cooling water

intake structures. The questions are limited to those intake structures that directly withdraw cooling water

from surface water. Information is also solicited on the design pass-through velocity at each intake

structure. Actual monthly cooling water intake flows are also requested for each intake structure for the

years 1996 to 1998. In addition, plants are asked to provide some basic data if they have ever reduced

cooling water intake flow rates to minimize impingement and/or entrainment and if they have employed

dilution pump technologies to reduce the temperature of their discharge. For plants employing an ice

control system at any of their cooling water intake structures, some basic information regarding the type

of system(s) in place is requested. Some basic information on technologies that were previously used to

minimize impingement and/or entrainment at an intake structure but were ineffective is requested. Finally,

some very basic data on cooling water towers are requested for those plants that employ such devices. 

Section D of the questionnaire requests information on the types of studies that may have been conducted

at the plant. Basic data are requested for any Section 316(b) demonstration studies that may have been

completed (i.e., studies to show that the location, design, construction, and capacity of a cooling water

intake structure reflect BTA for minimizing adverse environmental impact). Information is also requested

on any discrete biological or technology-related studies that have been conducted by the plant on

impingement and entrainment. Through this section of the questionnaire, EPA is attempting to identify

research that plants have already undertaken on Section 316(b)-related topics and the availability of study

data. 

Section E requests some basic information for cooling water intake structures planned or under

construction. Basic design data are requested for these intake structures. This information will help EPA

gain an understanding of the numbers of new intake structures expected to go on line in the future and their

basic design and operating characteristics. 
General Information and Instructions

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities v

Part 3 of the survey asks for economic and financial information about plants and steam-electric

generating units. The EPA will use this information to assess the potential impacts of compliance with

cooling water intake structure guidelines (under the authority of Section 316(b) of the Clean Water Act)

on the economic viability of all affected plants and their steam-electric generating units.

Specifically, EPA needs to determine how many plants and generating units are likely to experience

adverse economic impacts as a result of compliance with regulation, how large the economic impacts will

be, and if these impacts will be more severe for plants and generating units owned by small firms than

those owned by non-small firms. In order to evaluate the full economic impact of the regulation, EPA will

consider the costs associated with performing Section 316(b) studies, additions to cooling water intake

equipment, operating and maintenance costs associated with the regulation, and any impacts of Section

316(b) compliance requirements on the plant’s economic efficiency. EPA will estimate compliance cost

impacts on utility and plant cash flows and assess the likelihood of full or partial plant closures as a result

of the regulation. EPA needs the information requested in this part of the survey in order to conduct these

analyses.

The economic and financial portion of the questionnaire requests information about each plant as well as

its steam-electric generating units. Frequently, your accountant or comptroller is the best source of this

kind information. You may need to contact your utility headquarters for some of the information

requested. 

Authority

EPA is given authority to administer the technical questionnaire under Section 308 of the CWA (33 U.S.C.

Section 1318). Late filing of the questionnaire, or failure to follow any related EPA instructions, may

result in civil penalties, criminal fines, or other sanctions provided by law.

Who Must Complete This Questionnaire?

This questionnaire has been designed for completion by traditional steam electric utilities that are point

sources as defined under Section 502 of the Clean Water Act (33 U.S.C. Section 1362). 

Beyond this technical questionnaire, other editions have been produced for (1) steam electric nonutility

power producers and (2) other manufacturers that use cooling water. The other manufacturers to receive

a detailed questionnaire will include facilities from the following four major manufacturing sectors: Paper

and Allied Products (SIC 26), Chemical and Allied Products (SIC 28), Petroleum and Coal Products (SIC

29), and Primary Metals (SIC 33). Each of these groups has been identified by EPA as using large

quantities of cooling water and, therefore, potentially subject to Section 316(b) requirements.
vi Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

 Toll-Free Help Line: Available weekdays, 9:00 a.m. to 5:00 p.m., Eastern Time

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures

Traditional Steam Electric Utilities

Parts 1 and 2: Scoping and Technical Data

Science Applications International Corporation (SAIC)

Toll-Free Phone No: 1-800-246-3113

Direct Dial Phone No: 1-703-318-4676 (long distance charges will apply)

Part 3: Financial and Economic Data

Abt Associates Inc.

Toll-Free Phone No: 1-888-295-6199 

Direct Dial Phone No: 1-617-349-2496 (long distance charges will apply)

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures 

Traditional Steam Electric Utilities

316(b) Survey

U.S. Environmental Protection Agency 

c/o SAIC (R-1-3)

11251 Roger Bacon Drive

Reston, VA 20190-5201

Where to Get Help?

Certification Statement

A responsible corporate official or his (or her) duly authorized representative must verify the accuracy of

the responses to the entire questionnaire package by reading and signing the enclosed Certification

Statement. This statement must be returned to EPA along with completed survey materials.

When and How to Return the Questionnaire?

You must complete and return the Certification Statement to EPA within 90 calendar days after receiving

the materials at your plant or firm. Please return your materials in the enclosed self-addressed envelopes,

to:

NOTE: Please keep a copy of the completed questionnaire package and Certification Statement for your records.

If you have extenuating circumstances that prevent you from meeting the 90 day deadline, please contact

Deborah Nagle at the following address: Survey.316b@epamail.epa.gov to discuss your situation.
General Information and Instructions

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities vii

Once the surveys have been submitted, they will be entered into an EPA database and quality assurance

reviews will be performed. During this time, your facility may be called by one of EPA’s contractors to

verify your data. 

Confidential Business Information

You may assert a business confidentiality claim for some or all of your responses to the technical

questionnaire, as described in 40 CFR 2.203(b) (see full text below). Complete regulations governing

confidentiality of business information (CBI) appear in 40 CFR, Part 2, Subpart B. 

40 CFR 2.203(b) Method and time of asserting business confidentiality claim. A business which is submitting

information to EPA may assert a business confidentiality claim covering the information by placing on (or attaching

to) the information, at the time it is submitted to EPA, a cover sheet, stamped or typed legend, or other suitable form

of notice employing language such as ‘trade secret,’ ‘proprietary,’ or ‘company confidential.’ Allegedly confidential

portions of otherwise nonconfidential documents should be clearly identified by the business, and may be submitted

separately to facilitate identification and handling by EPA. If the business desires confidential treatment only until

a certain date or until the occurrence of a certain event, the notice should so state.

You may claim confidentiality of business information for any of your responses by checking () the

circle at the bottom of the page or by a method described above. Alternatively, all eligible questions in this

questionnaire may be globally claimed confidential by checking the circle at the end of this paragraph.

Note, however, that certain types of information cannot be claimed as confidential under the CWA (e.g.,

plant location, water body, water flow data, water body type). Questions that cannot be claimed as

confidential do not include an individual check-off circle at the bottom of the page. If no check mark

appears on this page or on the bottom of other pages and no other claim of confidentiality has been made

with respect to any of your given responses, EPA may make the data available to the public without further

notice. Please note that you may be required to justify any claim of confidentiality at a later time.

All eligible data are CBI 

If EPA must reveal information covered by a claim of confidentiality, the Agency will strictly follow the

requirements and procedures set forth in 40 CFR Part 2, Subpart B. Overall, EPA may reveal submitted

information protected by a CBI claim only to other employees, officers, or authorized representatives of

the United States who are responsible for implementation of the Clean Water Act. EPA has extensive

standard operating procedures in place to handle, store, and transmit CBI data and has a long history of

successfully managing this type of information. In addition, personnel expected to handle CBI data are

required by the Agency to be trained and certified.

EPA may make information covered by a claim of confidentiality available Agency contractors so that

work can be performed under their contracts. All EPA contracts require that contractor employees must

use CBI data only to do work specified by EPA. The information will not be shown to anyone, other than

EPA officials, without first having received written approval from the affected business or from EPA’s

legal office. If you have any comments on this matter, please include them with your completed

questionnaire.
viii Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

NOTE: Matrices that contain separate response columns for individual cooling water intake structures need not be completed

if the information being requested is not applicable to that particular cooling water intake structure.

NOTE: Please consult the Confidential Business Information subsection above for further information on asserting a CBI claim

and for EPA disclosure requirements.

Specific Instructions for Completing the Questionnaire

Plant personnel most knowledgeable of the subject areas covered by the questions posed should complete the

questionnaire. This may require that a different person be responsible for the completion of the technical

portions (Parts 1 and 2) than the person who is responsible for the economic and financial portion (Part 3).

Please provide an appropriate point of contact for each of these portions of the questionnaire. These persons

may be contacted if there are questions on your responses.

Please answer the questions in sequence unless you are directed to SKIP forward in the

questionnaire.

Do not leave response areas blank to any question that you have been directed to answer. For many

questions, EPA has included a response box saying “Don’t Know” or “No Data Available.” If one of these

response options is not included under a particular question, you must provide an answer.

For quantitative data,

– Please report to the nearest whole number, unless instructed otherwise. If your answer is zero,

please record a zero in the response column. Please do not leave a response area blank. 

– Provide actual data to the extent that they are available. Good faith estimates should be

provided only when actual data are not available.

Clearly mark responses to all questions with a black or blue ink pen, or type responses in the spaces

provided.

For each question, please read all instructions and definitions carefully.

Most key terms are defined in the Glossary, which accompanies the questionnaire package. Terms which

are defined in the Glossary appear bold and italicized in the text. Before responding to a given question,

please read the definitions of any key terms used and any question-specific instructions.

Please use the units specified when responding to questions requesting measurement data (e.g.,

gallons per day). When dates are requested, provide a 2-digit number that corresponds to the month.

When years are requested, provide the complete year (e.g., 01/1999).

Please provide responses based on the time period(s) cited in each question. Note that the time period

under which information is requested varies by question.

Please show whether information provided in any of your responses is confidential. Such information

will be protected under EPA’s confidentiality procedures. To claim a particular response as containing

confidential business information, simply check () the circle at the bottom of the page, if one is provided,

or follow the other identification procedures described under 40 CFR 2.203(b).
Part 1: Scoping Data

Detailed Industry Questionnaire:

Phase II Cooling Water Intake Structures

Traditional Steam Electric Utilities

January 2000
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Part

Scoping Data 1

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 1

Survey IDN.

Name of Plant

Mailing Address

City, State ZIP

Yes (1) SKIP TO Q.2

No (2)

Part 1: Scoping Data

1. (a) Does the above mailing label reflect the plant’s full legal

name and address?

(b) Please provide the complete legal name and mailing address

for the plant:

Name of Plant: (1)

Street Address: (2)

P.O. Box (if applicable): (3)

City, State ZIP: (4)

Telephone Number: (5)
Part 1. Scoping Data

2 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

2. Please identify the person responsible for providing responses in

the technical portion of this questionnaire. Provide the

appropriate title and contact information:

NOTE: The plant contact person provided here should be the person most

knowledgeable about the information requested in this part of the survey.

This person does not have to be the certifying official. Contact information

for persons responsible for completing the economic portion will be

requested in Part 3 of this questionnaire.

Name: (1)

Title: (2)

Employer (full legal name): (3)

Relationship to Plant (e.g., employee, domestic parent firm, contractor, etc):

(4)

Telephone No: ( ) Fax No: ( ) (5a & 5b)

Best Time to Contact: (6)

3. Is the plant presently in commercial service?

NOTE: To clarify for plants that are not in a commercial business,

interpret this question as, “Is your plant currently operating?”

4. What are the four-digit Standard Industrial Classification

(SIC) codes associated with the plant’s main lines of business?

[Please use SIC codes contained in the Office of Management and Budget’s 1987

Standard Industrial Classification Manual. This listing can also be found at the

following Internet site: www.osha.gov/cgi-bin/sic/sicser5.]

NOTE: Since the 1930s, SIC codes have been used to facilitate the

collection, tabulation, presentation, and analysis of data relating to U.S.

business establishments by Federal statistical agencies (e.g., Office of

Management and Budget or OMB, Bureau of the Census, etc.). The system

was last updated by OMB in 1987. It was recently replaced by the North

American Industry Classification System (NAICS) in 1997; however, it

continues to be used by many Federal agencies. EPA believes it would be

unnecessarily confusing to ask facilities to classify themselves using NAICS

codes for the purposes of this questionnaire.

Primary __ __ __ __ (1)

Secondary __ __ __ __ (2)

Other __ __ __ __ (3a) __ __ __ (3b) __ __ __ (3c)
Part

Scoping Data 1

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 3

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

 __________

 __________

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

For the purposes of this questionnaire, the term “cooling

water” refers to both contact and non-contact cooling water,

including water used for air conditioning, equipment cooling, evaporative cooling

tower makeup, and dilution of effluent heat content. The intended use of the cooling

water is to absorb waste heat rejected from the process or processes employed or

from auxiliary operations on the plant’s premises.

DEFINITION

5. (a) Does the plant presently have or is the plant presently in the

process of obtaining a National Pollutant Discharge

Elimination System (NPDES) permit?

NOTE: Permits are required to be held under Section 402 of the Clean

Water Act (33 U.S.C. 1342 et seq.) by any point source that discharges

pollutants to waters of the United States. Permits may address such

topics as effluent discharges, storm water, or sewage sludge

management practices and may be issued by an EPA Region or a

Federally-approved State NPDES program. Facilities that discharge

100 percent of their effluent (including storm water) to publicly-owned

treatment works, privately-owned treatment works, and/or to ground

water injection wells should answer “No” to this question.

(b) Please indicate the NPDES permit number for the plant in

the space provided: .............................

(c) In what year does the plant’s current NPDES permit expire?

[ Please check here () if your permit has expired but has been

administratively extended.]

6. Since January 1, 1996, has cooling water been used for contact

or non-contact cooling purposes at the plant? [Please consider all

cooling water used regardless of the type of water source or provider from which

it was obtained.]

7. Since January 1, 1996, has the plant directly obtained any

portion of its cooling water from a surface water source? [Note:

In order for a plant to directly withdraw cooling water from surface water, it

must have an intake structure. Please refer to the Glossary for the definition of

surface water. If 100 percent of cooling water is withdrawn from a local water

supplier, the plant’s own groundwater supply, or the water supply of a facility

other than your own, plant’s should answer “No” to this question.]
Part 1. Scoping Data

4 Technical Toll-Free Help Line: 1-800-246-3113

8. Please show in the matrix below all parties and/or sources from which the plant has obtained its

cooling water, including the plant itself for a typical calendar year since 1996. [Please check () all

applicable providers and/or sources.]

For a typical calendar year, please estimate the proportion of the plant’s total cooling water (from zero

to 100 percent) obtained from each provider and/or source marked. The total of your proportions

should be 100 percent.

PLEASE REFER TO THE GLOSSARY ACCOMPANYING THIS QUESTIONNAIRE FOR DEFINITIONS OF THE DIFFERENT PROVIDERS AND/OR

SOURCES.

Percent Contribution to Plant’s Total Cooling Water Flow

by Provider and/or Source for a Typical Year Since January 1, 1996

Item

No.

Providers and/or Sources of Plant’s Cooling Water

 Since January 1, 1996 

[Please check () all applicable providers and/or sources.]

Proportion (from zero to 100%) of

Plant’s Total Cooling Water Flow

Obtained from Each Provider and/or

Source for a Typical Calendar Year

Since 1996

8(a) Surface Water _______ %(1)

8(b) Local Water Supplier (e.g., municipalities and river authorities) _______ %(2)

8(c) Plant’s Own Groundwater Supply _______ %(3)

8(d) Plant’s Own Surface Water Supply _______ %(4)

8(e) Water Supply of Plant Other Than Own _______ %(5)

8(f) Other (please describe below): _______ %(6)

100%
Part 2: Technical Data

Detailed Industry Questionnaire:

Phase II Cooling Water Intake Structures

Traditional Steam Electric Utilities

January 2000
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Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 1

DEFINITION For the purposes of this questionnaire, a cooling water system is a system that provides water to/from

a plant to transfer heat from equipment or processes therein. A system includes, but is not limited to,

one or more water intake and outlet structures, cooling towers, ponds, pumps, pipes, and canals/channels. For plants

that use surface water for cooling, a cooling water system begins at the first barrier(s) to ingress and/or egress by fish

and other aquatic wildlife (e.g., at the weir wall, at the trash rack, etc.) and ends at the discharge outlet(s).

Section A: Plant Profile Data

Cooling Water Systems

1. Please provide the general profile data and design types requested in the matrix below for each of the

plant’s cooling water systems that are presently operating, or temporarily offline. Do not include

cooling water systems planned, under construction or permanently offline.

NOTES: Please consider your plant as having only one cooling water system, unless your plant has systems that are

physically separated (i.e., have separate water intake and outlet structures) and can be operated independently. If your

plant has several intake structures, but only one outlet structure, or vice-versa, please consider the plant as having only

one cooling water system. Intake structures with multiple bays count as one intake structure.

Information on structures planned or under construction is requested in Section E.
Part 2. Technical Data

2 Technical Toll-Free Help Line: 1-800-246-3113

Profile and Configuration of Plant’s Cooling Water Systems (CWSs) Matrix ___ of ___

Response space has been provided for two CWSs. If your plant has more than this number of systems, please copy the matrix. Insert any additional

matrices into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested CWS A CWS B

1(a) Plant-designated Number or Name of

CWS

1(b) Month and Year CWS Began Operation

or is Expected to Begin Operation

(e.g., 01/1999)

 _______ /_______

 Mo. Year

 _______ /_______

 Mo. Year

1(c) Operating Status of CWS [Please check

() only one response box per system.] Operating . . . . . . . . . . . . . . . . . (1) 

Temporarily Offline . . . . . . . . . . (2) 

Planned or Under Construction (3) 

Operating . . . . . . . . . . . . . . . . . (1) 

Temporarily Offline . . . . . . . . . . (2) 

Planned or Under Construction (3) 

1(d) Configuration of CWS [Please check ()

only one design type per system.]

Once Through CWSs

Once-Through Only .......... (1)

Once-Through With Nonrecirculating 

Cooling Canals/Channels,

Lakes, or Ponds ............ (2)

Once-Through With Nonrecirculating 

Cooling Towers . . . . . . . . . . . . . (3)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . (4)

Recirculating With Canals/

Channels, or Ponds .......... (5)

Recirculating With Towers . . . . . (6)

Other

(please describe below): ....... (7)

Once Through CWSs

Once-Through Only .......... (1)

Once-Through With Nonrecirculating 

Cooling Canals/Channels,

Lakes, or Ponds ............ (2)

Once-Through With Nonrecirculating 

Cooling Towers . . . . . . . . . . . . . (3)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . (4)

Recirculating With Canals/

Channels, or Ponds .......... (5)

Recirculating With Towers . . . . . (6)

Other

(please describe below): ....... (7)
Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 3

 ___________

DEFINITION For the purposes of this questionnaire, a cooling water intake structure is the total structure used to

withdraw water from a water source up to the first intake pump or series of pumps. The intended use

of the cooling water is to absorb waste heat rejected from processes employed or from auxiliary operations on the plant’s

premises. Single cooling water intake structures may have multiple intake bays and could serve more than one generating

unit. If a plant has intake structures that withdraw water for purposes besides cooling, the entire intake structure should

be considered a cooling water intake structure under the questionnaire.

Cooling Water Intake Structures

2. How many intake structures does the plant have that directly withdraw surface water to support, at

least in part, contact or noncontact cooling operations within the plant?

Consider only those intake structures presently operating and temporarily offline (i.e., expected to

operate again in the future). Do not include intake structures planned or under

construction or permanently offline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PLEASE ANSWER THE REMAINING INTAKE-RELATED QUESTIONS IN THIS SECTION FOR ONLY THOSE INTAKE STRUCTURES RECORDED ABOVE

UNDER Q.2. A later section in this questionnaire requests some very basic data on intake structures that are planned or under

construction. No data are being requested on (a) intake structures that obtain cooling water via groundwater wells or (b) conduits

to other providers of cooling water (e.g., local water suppliers or other plants).
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

4 Technical Toll-Free Help Line: 1-800-246-3113

3. Please provide the general design data requested in the matrix below for each of the plant’s cooling

water intake structures.

Profiles of Plant’s Cooling Water Intake Structures (CWISs) Matrix ___ of ___

Response space has been provided for two CWISs. If your plant has more than this number of intake structures, please copy the matrix. Insert any

additional matrices into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested CWIS A CWIS B

3(a) Plant-designated Number or Name of CWIS

3(b) Number of Intake Bays on CWIS

3(c) Month and Year CWIS First Used (e.g., 01/1999) _______ /_______ 

 Mo. Year

 _______ /_______ 

 Mo. Year

3(d) Latitude at Point of Intake Structure Openings

(in degrees, minutes, and seconds)

NOTE: For CWISs with intake bays, please provide

latitude for the central point of the intake bay openings.

_____ __________ _____ __________

3(e) Longitude at Point of Intake Structure Openings

(in degrees, minutes, and seconds)

NOTE: For CWISs with intake bays, please provide

longitude for the central point of the intake bay openings.

_____ __________ _____ __________

3(f) Associated Cooling Water System(s) [Please insert

CWS code numbers or names from Item 1(a) on page 2. If

more than one CWS, please separate codes by a comma.]

_____(1), ______(2), ______(3) _____(1), _____(2), _____(3)

3(g) Design Intake Capacity (in GPD) for CWIS

NOTE: If structure withdraws water for multiple

purposes, please provide design intake flow for all uses.

_____________ GPD _____________ GPD

3(h) Estimated Percentage of Design Capacity

Apportioned to Cooling Water Flow for the past

three (3) years (1996, 1997, and 1998) (based on

annual average flows).

_______% _______%
Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 5

4. Please provide the activities requiring cooling water directly withdrawn from surface water and

estimated total flow used in calendar year 1998 for each of the plant’s cooling water intake structures.

 CWIS _____ [Please insert no. or name as in Question 3 in Section A] Matrix ___ of ___

Activities for Which Cooling Water Was Required in Calendar Year 1998 and Estimated Percent

of Total Cooling Water Flow that Went to These Activities by Cooling Water Intake Structure

A separate matrix has been provided for two cooling water intake structures. If your plant has more than two cooling water intake

structures, please copy the matrix and change the cooling water intake structure code names or numbers as appropriate. Please

insert any additional matrices into this portion of the questionnaire and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item Activity for Which Cooling Water is Used

[Please Check () All Activities That Apply] Estimated Percent of Total Cooling Water Flow

4(a) Electricity Generation Using Steam Turbines

(including equipment cooling) _______% of Flow Used(2)

4(b) Electricity Generation Using Prime Movers Other Than

Steam Turbines (including equipment cooling) _______% of Flow Used(2)

4(c) Air Conditioning (cooling and heating of indoor air) _______% of Flow Used(2)

4(d) Production Line (or Process) Contact and/or

Noncontact Cooling (for use other than electricity

generation and excluding air conditioning) _______% of Flow Used(2)

4(e) Other

(please describe below)

_______% of Flow Used(2)
Part 2. Technical Data

6 Technical Toll-Free Help Line: 1-800-246-3113

CWIS _____ [Please insert no. or name as in Question 3 in Section A] Matrix ___ of ___

Activities for Which Cooling Water Was Required in Calendar Year 1998 and Estimated Percent

of Total Cooling Water Flow that Went to These Activities by Cooling Water Intake Structure

A separate matrix has been provided for two cooling water intake structures. If your plant has more than two cooling water intake

structures, please copy the matrix and change the cooling water intake structure code names or numbers as appropriate. Please

insert any additional matrices into this portion of the questionnaire and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item Activity for Which Cooling Water is Used

[Please Check () All Activities That Apply] Estimated Percent of Total Cooling Water Flow

4(a) Electricity Generation Using Steam Turbines

(including equipment cooling) _______% of Flow Used(2)

4(b) Electricity Generation Using Prime Movers Other Than

Steam Turbines (including equipment cooling) _______% of Flow Used(2)

4(c) Air Conditioning (cooling and heating of indoor air) _______% of Flow Used(2)

4(d) Production Line (or Process) Contact and/or

Noncontact Cooling (for use other than electricity

generation and excluding air conditioning) _______% of Flow Used(2)

4(e) Other

(please describe below)

_______% of Flow Used(2)
Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 7

Yes (1)

No (2) SKIP TO Q.6,

Page 10

Cooling Tower Technologies

5. (a) Does your plant employ cooling towers at any of its

cooling water systems?

(b) For each of the plant’s cooling water systems (CWSs),

please provide the cooling tower technology data

requested in the matrices beginning on the next page. 

[Refer back to the code names or numbers used for the plant’s cooling

water systems under Item 1(a) in Section A, page 2.]

Plants that currently employ more than one cooling tower

technology on a given cooling water system should fill

out a separate column for each different tower. If a

given cooling water system has multiple cooling towers

that are designed and/or operated similarly, only one

column of the matrix needs to be completed. Please,

however, report the total number of similar towers. If

there are differences in the design or operation of cooling

towers employed at a given cooling water system (e.g.,

different manufacturers, different ages, etc.), a separate

column for each matrix should be completed.
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

8 Technical Toll-Free Help Line: 1-800-246-3113

 CWS ____________ [Please insert same no. or name as in Question 1 of Section A] Matrix of 

Cooling Towers by Cooling Water System (CWS)

Response space has been provided for two cooling tower technologies per CWS. If one of your CWSs has more than this number of cooling tower

technologies, please copy the matrix and continue noting your towers. However, please change the cooling tower technology numbers in the table

heading to reflect the additional technologies (e.g., Cooling Tower Technology #3, Cooling Tower Technology #4, etc.). Insert any additional matrices

into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested Cooling Tower Technology #1 Cooling Tower Technology #2

5(b)(1) Type of Cooling Tower

Technology [Please check ()

only one response per technology

column.]

Mechanical Draft - Induced Draft . . (1)

Natural Draft - Atmospheric ...... (2)

Natural Draft - Chimney or Hyperbolic(3)

Natural Draft - Fan Assist . . . . . . . . (4)

Mechanical Draft - Induced Draft . . (1)

Natural Draft - Atmospheric ...... (2)

Natural Draft - Chimney or Hyperbolic(3)

Natural Draft - Fan Assist . . . . . . . . (4)

5(b)(2) Manufacturer (Mfr.) Name and

Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . . . . . . . . . . . . (3)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . . . . . . . . . . . (3)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

5(b)(3) Number of Cooling Towers of

This Type with Same Design

and Operational Description

5(b)(4) Calendar Year(s) Cooling

Tower(s) Installed (e.g., 1995)

5(b)(5) Expected Life Span of Cooling

Tower(s) (in years)

_______________________________ (1)

Don’t Know. . . . . . . . . . . . . . . . . . . (8)

_______________________________ (1)

Don’t Know. . . . . . . . . . . . . . . . . . . (8)
Section

Facility Profile Data A

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 9

CWS ____________ [Please insert same no. or name as designated in Question 1 of Section A.] Matrix of 

Cooling Towers by Cooling Water System (CWS)

Response space has been provided for two cooling tower technologies per CWS. If one of your CWSs has more than this number of cooling tower

technologies, please copy the matrix and continue noting your towers. However, please change the cooling tower technology numbers in the table

heading to reflect the additional technologies (e.g., Cooling Tower Technology #3, Cooling Tower Technology #4, etc.). Insert any additional matrices

into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested Cooling Tower Technology #1 Cooling Tower Technology #2

5(b)(1) Type of Cooling Tower

Technology [Please check ()

only one response per technology

column.]

Mechanical Draft - Induced Draft . . (1)

Natural Draft - Atmospheric ...... (2)

Natural Draft - Chimney or Hyperbolic(3)

Natural Draft - Fan Assist . . . . . . . . (4)

Mechanical Draft - Induced Draft . . (1)

Natural Draft - Atmospheric ...... (2)

Natural Draft - Chimney or Hyperbolic(3)

Natural Draft - Fan Assist . . . . . . . . (4)

5(b)(2) Manufacturer (Mfr.) Name and

Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . . . . . . . . . . . . (3)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . . . . . . . . . . . (3)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

5(b)(3) Number of Cooling Towers of

This Type with Same Design

and Operational Description

5(b)(4) Calendar Year(s) Cooling

Tower(s) Installed (e.g., 1995)

5(b)(5) Expected Life Span of Cooling

Tower(s) (in years)

______________________________(1)

Don’t Know. . . . . . . . . . . . . . . . . . . (8)

______________________________(1)

Don’t Know. . . . . . . . . . . . . . . . . . . (8)
Part 2. Technical Data

10 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1) SKIP TO Q.9,

Page 11 No (2)

DEFINITIONS

 ___________

For the purposes of this questionnaire, a zero-discharge

plant is a plant that does not return any treated or

untreated plant effluent (excluding storm water) to surface water, a POTW,

a privately-owned treatment works, or a groundwater injection well. An

example of a zero-discharge plant might be an entity that discharges its total

effluent to an evaporative pond or that completely recycles its wastewater.

Cooling Water Discharge Outfalls

6. Is the plant presently a zero-discharge plant? [Base your

determination of whether you are a zero-discharge plant on your effluent only. 

Do not include storm water discharges in this assessment.]

7. How many NPDES-permitted cooling water discharge

outfalls does the plant have? Consider only those discharge

outfalls that are presently operating or temporarily offline

(i.e., expected to return to service). Do not consider those

discharge outfalls planned or under construction or

permanently offline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8. Please provide the general profile data requested in the matrix

below for each of the plant’s NPDES-permitted cooling water

discharge outfalls.

Profiles of Plant’s NPDES-Permitted Cooling Water Discharge Outfalls (CWDOs) Matrix ___ of ___

Response space has been provided for two CWDOs. If your plant has more than this number of outfalls, please copy the matrix and change the

CWDO code numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets as

Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested CWDO #1 CWDO #2

8(a) NPDES Permit-designated Number or Name of Cooling

Water Discharge Outfall

8(b) Latitude at Point of CWDO

(in degrees, minutes, and seconds) ____________ ____________

8(c) Longitude at Point of CWDO

(in degrees, minutes, and seconds) ____________ ____________

8(d) Associated Cooling Water System(s) [Please insert CWS code

numbers or names from Item 1(a) on page 2. If more than one CWS,

please separate codes by a comma.]

_____(1), _____(2), _____(3) _____(1), _____(2), _____(3)
Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 11

Flow Distribution/Water Balance Diagram

9. Please attach a flow distribution/water balance diagram to this section of the questionnaire. The

flow diagram should contain the information itemized below. 

NOTE: If you have an existing diagram, perhaps as part of your NPDES permit application package, you may

modify it to include the information requested. If you do not have a flow diagram, please develop one. The diagram

can be printed or typed. A sample diagram has been included at the end of this section to clarify the type of

information being requested.

(a) Intake-Related Data (based on 1998 flow data)

(1) By intake structure (both cooling water intake structures as well as others), note

contributing sources of new water to the plant by generic name (e.g., groundwater, surface

water, local water supplier, or water supply of plant other than your own) despite how

that water is ultimately used. 

• Include intake structures presently operating, and temporarily offline but expected to

be returned to service. 

• Do not include intake structures that have been permanently taken offline or those

planned or under construction.

• Label the intake structures on the diagram with a plant-designated name or number,

and note the operational status.

• Provide a brief description of the source water and intake configuration (e.g., the

cooling water intake structure has 5 surface intake bays that are flush with the

shoreline on a natural cove on the Survey River)

NOTE: An annual average of flows in gallons per day (GPD) can be calculated by summing actual daily intake

flows (in MGD) for 1998 and dividing by 365 days.

(2) Indicate the average daily intake flow of new water, including makeup water, in GPD

taken into the plant through each of the plant’s intake structures.

(b) Distribution of Plant’s Intake Flow (based on 1998 flow data)

Indicate the distribution of intake flow (average daily intake flows, in GPD) from each of the

intake structures to waters used for process, contact and noncontact cabling, and nonprocess

activities within the plant.

• Note the type of activity (e.g., process, contact cooling, noncontact cooling, or nonprocess)

and the flow to each (in GPD).

• Include recirculating and recycle loops where appropriate with associated flows.
Part 2. Technical Data

12 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2)

(c) Discharge-Related Data (based on 1998 flow data)

(1) By discharge structure, indicate the water sources or

entities that receive the plant’s discharge by generic

name (e.g., POTW, privately-owned treatment

works, cooling canals/channels, cooling lakes,

cooling ponds, cooling towers, groundwater, or

surface water).

• Include all discharge structures presently

operating, and those temporarily offline but

expected to be returned to service.

• Do not include discharge structures that are

planned, under construction, or permanently

offline.

• Please label the discharge structures on the

diagram with a plant-designated name or number,

and please note the operational status of each

structure.

(2) Average daily intake flows, (in GPD) being

discharged to each of these water sources.

See Next Page for Example of a Plant Flow

Distribution/Water Balance Diagram.

Please Insert Your Water Balance Diagram at the End

of This Section of the Questionnaire and Indicate

Below That It Is Attached.

Diagram Attached?
Section

Facility Profile Data A

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 13

Condenser

Cooling

Once Through

Cooling W ater

Unit I

Service

Cooling

Once Through

Cooling W ater

Unit II

Lubricating

W ater

Dem in.

Regen.

System

Potable

W ater Fire Protection StormW ater

Atlantic

Ocean

City W ater

Supply

Sanitary

W aste

Treatm ent

W aste

Test

Tank

Secondary

Plant

Leakage

Steam

Generator

Blowdown

and SUMP

Dem in.

Regen.

System

Alternate

W ater Supply

250 M GD 200 M GD 50 M GD 350 M GD 0.3 M GD

Max:

0.35

MGD

7.5

MGD

40,000 GPD

(O utfall 003)

70,000 GPD

5,000

GPD

25,000

GPD

Max:

850 MGD

7.8 M GD

(O utfall 001)

Atlantic

Ocean

900 MGD

(O utfall 004)

Atlantic

Ocean

Example Flow Distribution/Water Balance Diagram
Part 2. Technical Data

14 Technical Toll-Free Help Line: 1-800-246-3113

THIS PAGE INTENTIONALLY LEFT BLANK
Section

Sources of Cooling Water and Intake Arrangements B

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 15

Yes (1)

No (2) SKIP TO Q.11,

Next Page

Section B: Sources of Cooling Water and Intake Arrangements

Please answer the questions in this section of the questionnaire for only those cooling water intake

structures that directly withdraw surface water to support contact and noncontact cooling operations

within the plant. Consider only those cooling water intake structures presently operating and those

temporarily offline but expected to be returned to service. Do not include intake structures planned or

under construction, or permanently offline.

NOTE: You should report data for the same cooling water intake structures identified under Question

3 of the previous section.

Water Source Data

10. (a) Do any of the plant’s cooling water intake structures

withdraw water from a nontidal river or stream or a tidal

river?

(b) Please provide the water source data requested in the matrix

below for each of your cooling water intake structures that

withdraw water from a nontidal river or stream or a tidal

river.

Nontidal River or Stream or Tidal River: Water Source Data Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS _______________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS _______________

[Please insert same no. or name as in

Question 3 in Section A]

10(b)(1) Name of Water Body

10(b)(2) Mean Annual Flow of Water Body 

Available in Latest NPDES Permit or Fact

Sheet (in cubic feet per second or cfs)

________________________cfs (1)

Data Not Available . . . . . . . . (8)

________________________cfs (1)

Data Not Available . . . . . . . . (8)

10(b)(3) 7Q10 Value for Non-tidal Rivers (or

Annual Low Flow for previous hydrologic

year if 7Q10 is unavailable) and the Mean

Tidal Volume for Tidal Rivers if Available in

Latest NPDES Fact Sheet or Application

(in cfs)

________________________cfs (1)

Data Not Available . . . . . . . . (8)

________________________cfs (1)

Data Not Available . . . . . . . . (8)
Part 2. Technical Data

16 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2) SKIP TO Q.12,

Next Page

11. (a) Do any of the plant’s cooling water intake structures

withdraw water from a lake, pond (other than a cooling

pond), or reservoir?

(b) Please provide the water source data requested in the matrix

below for each of your cooling water intake structures that

withdraw water from a pond, lake, or reservoir.

Lake, Pond (other than a Cooling Pond), or Reservoir: Water Source Data Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code numbers or names as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS______________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS______________

[Please insert same no. or name as in

Question 3 in Section A]

11(b)(1) Name of Water Body

11(b)(2) Water Body Volume at Annual Mean

Water Level (in acre feet)

______________________ acre feet (1)

Great Lakes (Not Applicable) . . (2)

Data Not Available . . . . . . . . . . (8)

______________________ acre feet (1)

Great Lakes (Not Applicable) . . (2)

Data Not Available . . . . . . . . . . (8)

11(b)(3) Surface Area at Mean Water Level

(in acres)

_________________________acres (1)

Great Lakes (Not Applicable) . . (2)

Data Not Available . . . . . . . . . . (8)

________________________ acres (1)

Great Lakes (Not Applicable) . . (2)

Data Not Available . . . . . . . . . . (8)

11(b)(4) Area at Minimum Conservation

Pool Level (in acres)

NOTE: Please refer to the Glossary

for the definition of conservation

pool.

________________________ acres (1)

Data Not Available . . . . . . . . . . (8)

Great Lakes (Not Applicable) . . (2)

Not Applicable/Water Source Is 

Not a Constructed Reservoir . . (3)

________________________ acres (1)

Data Not Available . . . . . . . . . . (8)

Great Lakes (Not Applicable) . . (2)

Not Applicable/Water Source Is 

Not a Constructed Reservoir . . (3)

11(b)(5) Volume at Minimum Conservation

Pool Level (in acre-feet) _____________________ acre-feet (1)

Data Not Available . . . . . . . . . . (8)

Great Lakes (Not Applicable) . . (2)

Not Applicable/Water Source Is 

Not a Constructed Reservoir . . (3)

______________________acre-feet (1)

Data Not Available . . . . . . . . . . (8)

Great Lakes (Not Applicable) . . (2)

Not Applicable/Water Source Is 

Not a Constructed Reservoir . . (3)
Section

Sources of Cooling Water and Intake Arrangements B

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 17

Yes (1)

No (2) SKIP TO Q.13,

Next Page

12. (a) Do any of the plant’s intake structures withdraw cooling

water from an estuary or ocean?

(b) Please provide the water source data requested in the matrix

below for each of your cooling water intake structures that

withdraw water from an estuary or ocean.

Estuary or Ocean: Water Source Data Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

12(b)(1) Name of Water Body 

12(b)(2) Mean Low Tidal Water Level (in feet

relative to the National Geodetic Vertical

Datum (NGVD))

_________________________ feet (1)

Data Not Available . . . . . . . . . . (8)

_________________________ feet (1)

Data Not Available . . . . . . . . . (8)

12(b)(3) Mean High Tidal Water Level (in feet

relative to NGVD) _________________________ feet (1)

Data Not Available . . . . . . . . . . (8)

_________________________ feet (1)

Data Not Available . . . . . . . . . (8)
Part 2. Technical Data

18 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2) SKIP TO Q.14,

Next Page

Intake Arrangements

Please refer to the Glossary accompanying the questionnaire for schematics of the various intake

configurations discussed in this subsection of the technical questionnaire.

13. (a) Does your plant have any intake canals/channels?

(b) Please provide the general design data requested in the

matrix below for the plant’s intake canals/channels.

Intake Canal (or Channel) Configurations Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

13(b)(1) Length from Canal Mouth to Pumps (in feet) _________________________ feet _________________________ feet

13(b)(2) Average Cross-Sectional Area of the Intake

Structure Opening which is Submerged

when the Source Water is at Mean Low

Water Level (for Tidal) or 7Q10 (for nonTidal) (in square feet)

Average Cross-Sectional Area of the Intake

Structure Opening which is Submerged

when the Source Water is at Mean Annual 

Water Level (in square feet)

________________________ ft2 (1)

_________________________ ft2

 (2)

________________________ ft2 (1)

_________________________ft2

 (2)

13(b)(3) Distance of Skimmer/Curtain/or Baffle

Wall from Canal Mouth (in feet) [Please

check () “none installed” if a particular CWIS

does not have a skimmer, curtain, or baffle wall.]

_______________________ feet (1)

None Installed ............ (2)

_______________________ feet (1)

None Installed ............ (2)

NOTE: The intake structure opening would be that point where water first

enters the cooling water intake structure. For example, if the plant has a

cooling canal, the opening would be at the mouth of the canal.
Section

Sources of Cooling Water and Intake Arrangements B

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 19

Yes (1)

No (2) SKIP TO Q.15,

Next Page

14. (a) Does your plant have any cooling water intake structures that

are situated on or that incorporate a bay or cove (natural or

constructed)?

(b) Please provide the general design data requested in the

matrix below for the bays or coves associated with the

plant’s intake structures.

Bay or Cove (natural or constructed) Intake Structure Configurations Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

14(b)(1) Average Water Depth of Bay or Cove at

Withdrawal Point (in feet) ___________________ feet ___________________ feet
Part 2. Technical Data

20 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2) SKIP TO Q.16,

Next Page

15. (a) Does your plant have any shoreline intake structures?

(b) Please provide the general design data requested in the

matrix below for the plant’s shoreline intake structures.

Shoreline Intake Structure Configurations Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

15(b)(1) Type of Intake [Please check () only one 

intake type per CWIS.] Surface Shoreline . . . . . . . . . . (1)

Submerged Shoreline ....... (2)

Surface Shoreline . . . . . . . . . . (1)

Submerged Shoreline ....... (2)

15(b)(2) Location of Intake Entrance [Please

check () only one intake location per

CWIS.]

Flush with Shoreline . . . . . . . . (1)

Recessed . . . . . . . . . . . . . . . . (2)

Protruding Offshore . . . . . . . . (3)

Flush with Shoreline . . . . . . . . (1)

Recessed . . . . . . . . . . . . . . . . (2)

Protruding Offshore . . . . . . . . (3)

15(b)(3) Depth of Water Source at Withdrawal

Point (in feet) __________________________ feet __________________________ feet

15(b)(4) Average Distance between the Top

(i.e., crown) of the Intake Structure

Opening and Water Surface (if

submerged) (in feet at mean water

level)

________________________ feet(1)

NA . . . . . . . . . . . . . . . . . . . . . (9)

________________________ feet(1)

NA . . . . . . . . . . . . . . . . . . . . . (9)

15(b)(5) Average Distance between the Bottom

(i.e., invert) of the Intake Structure

Opening and the Water Surface (in

feet at mean water level)

__________________________ feet _________________________ feet

15(b)(6) Skimmer/Curtain/or Baffle Wall

Installed? Yes . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . (2)

Yes . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . (2)
Section

Sources of Cooling Water and Intake Arrangements B

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 21

Yes (1)

No (2) SKIP TO Q.17

16. (a) Does your plant have any submerged offshore intake

structures?

(b) Please provide the general design data requested in the

matrix below for the plant’s submerged offshore intake

structures.

Submerged Offshore Intake Structure Configurations Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of intake structures,

please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

CWIS________________

[Please insert same no. or name as in

Question 3 in Section A]

16(b)(1) Distance from Shore (in feet) _________________________ feet _________________________ feet

16(b)(2) Depth of Water Source at Withdrawal

Point (in feet) _________________________ feet _________________________ feet

16(b)(3) Average Distance of the Top (e.g.,

crown) of the Intake Structure Opening

Below Water Surface (in feet)

Average Distance of the Bottom (e.g.,

invert) of the Intake Structure Opening

Below Water Surface (in feet)

_______________________ feet (1)

_______________________ feet (2)

_______________________ feet (1)

_______________________ feet (2)

17. Provide the following information on proximity of the plant’s

cooling water intake structure to sensitive aquatic ecological

areas. [Please check () all applicable items for each intake structure.]

NOTE: Please provide the requested information assuming typical or

average meteorological flow, and operational conditions.
Part 2. Technical Data

22 Technical Toll-Free Help Line: 1-800-246-3113

Proximity of Intake Structures to Sensitive Aquatic Ecological Areas

If your plant has more than two cooling water intake structures, please copy the matrix and change the CWIS code names or numbers as appropriate. 

Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc. [Please insert

same CWIS no. or name as in Question 3 in Section A]

Item

No. Data Requested CWIS________________ CWIS________________

17(a) Wetlands Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(b) Confluence of Tributaries Where

Third Order Streams or Larger

Come Together

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(c) Sensitive and/or Primary Aquatic

Life Habitat Areas (e.g.,

Fish/Shellfish Spawning and

Nursery Areas, Submerged

Vegetation, Reefs, etc.)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(d) Protected Aquatic Sanctuaries

on the Source Water Shed

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(e) Designated Critical Aquatic

Habitat of Any Threatened, or

Endangered Aquatic Species (U.S.

Fish and Wildlife Service and

National Marine Fisheries Service)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(f) Aquatic Migratory Routes Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

17(g) Commercial and/or Recreational

Fishing Areas (e.g., State parks,

wildlife refuge areas, designated

hunting and fishing areas)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)

Within 100 Meters of the

CWIS Opening ............... (1)

None . . . . . . . . . . . . . . . . . . . . . . . (2)

Data Not Available . . . . . . . . . . . . (8)
Section

Cooling Water Intake Structure Technology Information C

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 23

Yes (1)

No (2) SKIP TO Q.19,

Next Page

Section C: Cooling Water Intake Structure Technology Information

Please answer the questions in this section of the questionnaire for only those intake structures that

directly withdraw surface water to support contact and non-contact cooling operations within the plant.

Consider only those intake structures that are presently operating and those temporarily offline but

expected to be returned to service. Do not include intake structures planned or under construction or

permanently offline.

NOTE: You should report data for the same intake structures considered under the previous two

sections of the questionnaire.

Bar Racks and Screening Technologies

18. (a) Do you employ bar racks/trash racks at any of the plant’s

cooling water intake structures?

(b) Please provide the names or numbers for those cooling

water intake structures (CWISs) where bar racks/trash racks

are employed. [Please insert same code names or numbers as listed

under Question 3 in Section A.]

CWIS ________(1) CWIS ________(2) CWIS ________(3)

CWIS ________(4) CWIS ________(5)
Part 2. Technical Data

24 Technical Toll-Free Help Line: 1-800-246-3113 

Yes (1)

No (2) SKIP TO Q.20, 

Page 28

19. (a) Do you employ traveling or other intake screen systems at

any of the plant’s cooling water intake structures?

(b) In the matrix below, please identify the cooling water intake

structures that employ traveling or other intake screen

systems. [Please check () all traveling or other intake screen system

technologies that apply per cooling water intake structure.]

Matrix 19(b) Matrix ___ of ___

Traveling or Other Screen System Technologies

Response space has been provided for two cooling water intake systems (CWISs). If your plant has more than this number of CWISs, please copy

the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and

identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Technology

Codes

Traveling or Other Intake Screen 

System Technologies

[Please check () all technologies that apply per CWIS.]

CWIS __________

[Please insert same no. or name as

under Question 3 in Section A]

CWIS ________

[Please insert same no. or name

as under Question 4 in Section A]

A Horizontal Drum (1) (1)

B Vertical Drum (2) (2)

C Rotating Disk (3) (3)

D Fixed (4) (4)

E1 Vertical Single Entry/Exit Traveling (5) (5)

E2 Modified Vertical Single Entry/Exit Traveling

(Ristroph) (6) (6)

E3 Incline Single Entry/Exit Traveling (7) (7)

E4 Single Entry/Double Exit Traveling (Center Flow) (10) (10)

E5 Double Entry/Single Exit Traveling (Dual Flow) (11) (11)

E6 Horizontal Traveling (12) (12)

F Other

(please describe below): (13) (13)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 25

(c) For those cooling water intake structures where traveling or other intake screen systems are

employed, please provide the technology data requested in the matrices beginning on the next

page.

NOTE: A separate matrix has been provided for two cooling water intake structures. If you have more than this

number of intake structures, please copy the matrix and change the cooling water intake structure code names or

numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual

matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Plants that employ more than one traveling or other intake screen system technology at a given

intake structure should fill out a separate column in the matrix for each different technology.

If a given intake structure has multiple traveling or other intake screen system technologies that

are substantially similar in design and operation, only one column of the matrix needs to be

completed. However, please report the number of technology units that are similar. If there are

differences in the design or operation of the same technology employed at a given intake structure

(i.e., different manufacturers, different ages, etc.), separate columns of the matrix should be

completed.
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

26 Technical Toll-Free Help Line: 1-800-246-3113 

 CWIS___________ [Please insert same code no. or name as in Question 3 in Section A] Matrix ___ of ___

Traveling or Other Intake Screen System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different traveling or other intake screen system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code

numbers. Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Traveling or Other Intake 

Screen System Technology 

#1

Traveling or Other Intake 

Screen System Technology 

#2

Traveling or Other Intake 

Screen System Technology

#3

19(c)(1) Type of Technology

[Provide Technology Code

from Matrix 19(b), page 24. 

Use codes A through F.]

19(c)(2) Manufacturer (Mfr.)

Name and Model of

System

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . . (3)

Don’t Know . . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . . (3)

Don’t Know . . . . . . . . . . (8)

19(c)(3) Mesh Size of System

[Please check () only one

response per technology.]

Standard ( to 3⁄4 in) . . (1)

Fine (5 mm or less) . . . . (2)

Other 

(please describe below) (3)

Standard ( to 3⁄4 in) . (1)

Fine (5 mm or less) . . . (2)

Other 

(please describe below)(3)

Standard ( to 3⁄4 in) . . (1)

Fine (5 mm or less) . . . . (2)

Other 

(please describe below) (3)

19(c)(4) Number of Systems of

this Type with Same

Design and Operational

Description

19(c)(5) Calendar Year(s)

System Installed

(e.g., 1991)

Year(s): ________________

Don’t Know . . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): ________________

Don’t Know . . . . . . . . . . (8)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 27

CWIS___________ [Please insert same code no. or name as in Question 3 in Section A] Matrix ___ of ___

Traveling or Other Intake Screen System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different traveling or other intake screen system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code

numbers. Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Traveling or Other Intake 

Screen System Technology 

#1

Traveling or Other Intake 

Screen System Technology 

#2

Traveling or Other Intake 

Screen System Technology

#3

19(c)(1) Type of Technology

[Provide Technology Code

from Matrix 19(b), page 24.

Use codes A through F.]

19(c)(2) Manufacturer (Mfr.)

Name and Model of

System

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . . (3)

Don’t Know . . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

19(c)(3) Mesh Size of System

[Please check () only one

response per technology.]

Standard ( to 3⁄4 in) . . (1)

Fine (5 mm or less) . . . . (2)

Other 

(please describe below): (3)

Standard ( to 3⁄4 in) . (1)

Fine (5 mm or less) . . . (2)

Other

(please describe below):(3)

Standard ( to 3⁄4 in) . (1)

Fine (5 mm or less) . . . (2)

Other 

(please describe below): (3)

19(c)(4) Number of Systems of

this Type with Same

Design and Operational

Description

19(c)(5) Calendar Year(s)

System Installed

(e.g., 1991)

Year(s): ________________

Don’t Know . . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): ________________

Don’t Know . . . . . . . . . (8)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

28 Technical Toll-Free Help Line: 1-800-246-3113 

Yes (1)

No (2) SKIP TO Q.21,

Next Page

DEFINITIONS For the purposes of this questionnaire, impingement refers to

the trapping and holding of aquatic organisms to the outer part

of an intake structure or against screening devices during periods of cooling water

withdrawal.

For the purposes of this questionnaire, entrainment refers to the merging of small

aquatic organisms with the flow of cooling water entering and passing through a

cooling water intake structure, and thus, into a water system.

20. (a) Do you employ traveling or other intake screen systems at

the plant to reduce impingement and/or entrainment effects

on aquatic organisms?

(b) For the applicable cooling water intake structures, please

show in the matrix below the types of intake screen systems

used.

Traveling or Other Intake Screen Systems to Reduce Impingement and/or Entrainment Matrix ___ of ___

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of CWISs, please copy

the matrix. Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Data Requested

CWIS 

[Please insert same no. or name 

as in Question 3 in Section A]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

Traveling or Other Intake Screen

Systems Used. [Please check ()

all modifications that apply per CWIS.]

Low-Pressure Spray Wash or Fish Spray(1)

Change in Angle of Spray Wash

Relative to Screen Surface ........... (2)

Separate Fish and Debris Troughs .... (3)

Both Front and Back Spray Washes . . . (4)

Fish Buckets, Baskets, or Trays . . . . . . . (5)

Other

(please describe below): . . . . . . . . . . . . . (6)

Low-Pressure Spray Wash or Fish Spray(1)

Change in Angle of Spray Wash

Relative to Screen Surface ........... (2)

Separate Fish and Debris Troughs .... (3)

Both Front and Back Spray Washes . . . (4)

Fish Buckets, Baskets, or Trays . . . . . . . (5)

Other

(please describe below): . . . . . . . . . . . . . (6)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 29

Yes (1)

No (2) SKIP TO Q.22,

Page 32

Passive Intake System Technologies

21. (a) Do you employ passive intake systems at any of the plant’s

cooling water intake structures?

(b) In the matrix below, please identify the cooling water intake

structures that employ passive intake systems. [Please check

() all passive intake system technologies that apply per cooling water

intake structure.]

Matrix 21(b) Matrix ___ of ___

Passive Intake System Technologies

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of CWISs, please copy

the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and

identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Technology

Codes Passive Intake System Technologies

[Please check () all technologies that apply per CWIS.]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

CWIS 

[Please insert same no. or name

as Question 3 in Section A]

G Wedge-Wire Screen (1) (1)

H Perforated Pipe (2) (2)

I Porous Dike (3) (3)

J Leaky Dam (4) (4)

K Artificial Filter Bed (5) (5)

L Other

(please describe below): (6) (6)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

30 Technical Toll-Free Help Line: 1-800-246-3113 

(c) For those cooling water intake structures where passive intake systems are employed, please

provide the technology data requested in the following matrices.

Plants that employ more than one passive intake system technology at a given cooling water intake

structure should fill out a separate column in the matrix for each different technology. If a given

intake structure has multiple passive intake system technologies that are substantially similar in

design and operation, only one column of the matrix needs to be completed. However, please

report the number of technology units that are similar. If there are differences in the design or

operation of the same technology employed at a given intake structure (i.e., different

manufacturers, different ages, etc.), separate columns of the matrix should be completed.

 CWIS___________ [Please insert same code no. or name as in Question 3 in Section A] Matrix ___ of ___

Passive Intake System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different passive intake screen system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code

numbers. Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Passive Intake System

Technology #1

Passive Intake System

Technology #2

Passive Intake System

Technology #3

21(c)(1) Type of Technology [Provide

Technology Code from Matrix

21(b), page 29. Use codes G

through L.]

21(c)(2) Manufacturer (Mfr.) Name

and Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

21(c)(3) Number of Systems of This

Type with Same Design and

Operational Description

21(c)(4) Calendar Year(s) System

Installed (e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 31

CWIS___________ [Please insert same code no. or name as in Question 3 in Section A] Matrix ___ of ___

Passive Intake System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different passive intake screen system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code

numbers. Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Passive Intake System

Technology #1

Passive Intake System

Technology #2

Passive Intake System

Technology #3

21(c)(1) Type of Technology [Provide

Technology Code from Matrix

21(b), page 29. Use codes G

through L.]

21(c)(2) Manufacturer (Mfr.) Name

and Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

21(c)(3) Number of Systems of This

Type with Same Design and

Operational Description

21(c)(4) Calendar Year(s) System

Installed (e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

32 Technical Toll-Free Help Line: 1-800-246-3113 

Yes (1)

No (2) SKIP TO Q.23,

Page 35

Fish Diversion or Avoidance System Technologies

22. (a) Do you employ fish diversion or avoidance system

technologies at any of the plant’s cooling water intake

structures?

(b) Please identify the cooling water intake structures that

employ fish diversion or avoidance systems in the matrix

below. [Please check () all fish diversion or avoidance system

technologies that apply per cooling water intake structure.]

Matrix 22(b) Matrix ___ of ___

Fish Diversion or Avoidance System Technologies

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of CWISs, please copy the

matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify

individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Technology

Codes 

Fish Diversion or Avoidance System

Technologies

[Please check () all technologies that apply per CWIS.]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

M Velocity Cap (1) (1)

N Louver Barrier (2) (2)

O Water Jet Barrier (3) (3)

P Fish Net Barrier (4) (4)

Q Air Bubble Barrier (5) (5)

R Electrical Barrier (6) (6)

S Light Barrier (7) (7)

T Sound Barrier (10) (10)

U Cable or Chain Barrier (11) (11)

V Other

(please describe below): (12) (12)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 33

(c) For those cooling water intake structures where fish diversion and/or avoidance systems are

employed, please provide the technology data requested in the matrices beginning on the next

page.

Plants that employ more than one fish diversion and/or avoidance system technology at a given

cooling water intake structure should fill out a separate column in the matrix for each different

technology. If a given intake structure has multiple fish diversion and/or avoidance system

technologies that are substantially similar in design and operation, only one column of the matrix

needs to be completed. However, please report the number of technology units that are similar.

If there are differences in the design or operation of the same technology employed at a given

intake structure (i.e., different manufacturers, different ages, etc.), separate columns should be

completed.
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

34 Technical Toll-Free Help Line: 1-800-246-3113 

 CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Fish Diversion or Avoidance System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different fish diversion or avoidance system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code numbers. 

Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Fish Diversion and/or

Avoidance System

Technology #1

Fish Diversion and/or

Avoidance System

Technology #2

Fish Diversion and/or

Avoidance System

Technology #3

22(c)(1) Type of Technology [Provide

Technology Code from Matrix

22(b), page 32. Use codes M

through V.]

22(c)(2) Manufacturer (Mfr.) Name

and Model of System 

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: _(1)

Model: _ (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: _ (1)

Model: _ (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

22(c)(3) Number of Systems of This

Type with Same Design and

Operational Description

22(c)(4) Calendar Year(s) System

Installed (e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

 CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Fish Diversion or Avoidance System Technology Data by Cooling Water Intake Structure (CWIS)

Response space has been provided for three different fish diversion or avoidance system technologies. If you employ more than this number of

technologies for a given CWIS, please copy the matrix and continue noting your technologies. Please, however, change the technology code numbers. 

Attach any additional matrix sheets to this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

Fish Diversion and/or

Avoidance System

Technology #1

Fish Diversion and/or

Avoidance System

Technology #2

Fish Diversion and/or

Avoidance System

Technology #3

22(c)(1) Type of Technology [Provide

Technology Code from Matrix

22(b), page 32. Use codes M

through V.]

22(c)(2) Manufacturer (Mfr.) Name

and Model of System 

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

22(c)(3) Number of Systems of This

Type with Same Design and

Operational Description

22(c)(4) Calendar Year(s) System

Installed (e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 35

Yes (1)

No (2) SKIP TO Q.24,

Page 39

Fish Handling and/or Return Technologies

23. (a) Do you employ fish handling and/or return systems at any

of the plant’s cooling water intake structures?

(b) In the matrix below, please identify the cooling water intake

structures that employ fish handling and/or return systems.

[Please check () all fish handling and/or return systems that apply per

cooling water intake structure.]

Matrix 23(b) Matrix ___ of ___

Fish Handling and/or Return System Technologies

Response space has been provided for two cooling water intake structures (CWISs). If your plant has more than this number of CWISs, please copy

the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and

identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Technology

Codes 

Fish Diversion or Avoidance System

Technologies

[Please check () all technologies that apply per CWIS.]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

W Fish Pump (1) (1)

X Fish Conveyance System (Troughs or Pipes) (2) (2)

Y Fish Elevator/Lift Baskets (3) (3)

Z Fish Bypass System (4) (4)

AA Fish Holding Tank (5) (5)

BB Other

(please describe below): (6) (6)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

36 Technical Toll-Free Help Line: 1-800-246-3113 

(c) For those cooling water intake structures where fish handling and/or return systems are employed,

please provide the technology data requested in the matrices beginning on the next page.

NOTE: Response space has been provided for three different fish handling and/or return system technologies. If

you employ more than this number of technologies for a given CWIS, please copy the matrix and continue noting

your technologies. Please, however, change the technology code numbers. Attach any additional matrix sheets to

this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Plants that employ more than one fish handling and/or return system technology at a given intake

structure should fill out a separate column in the matrix for each different technology. If a given

intake structure has multiple fish handling and/or return system technologies that are substantially

similar in design and operation, only one column of the matrix needs to be completed. However,

please report the number of technology units that are similar. If there are differences in the design

or operation of the same technology employed at one intake structure (i.e., different

manufacturers, different ages, etc.), separate columns of the matrix should be completed.
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 37

 CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Fish Handling and/or Return System Technology Data by Cooling Water Intake Structure (CWIS)

Item No. Data Requested

Fish Handling and/or

Return System Technology

#1

Fish Handling and/or

Return System Technology

#2

Fish Handling and/or

Return System Technology

#3

23(c)(1) Type of Technology

[Provide Technology Code

from Matrix 23(b), page 35. 

Use codes W through BB.]

23(c)(2) Manufacturer (Mfr.) and

Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . (3)

Don’t Know . . . . . . . . (8)

23(c)(3) Number of Systems of

this Type with Same

Design and Operational

Description

23(c)(4) Calendar Year(s)

Systems Installed

(e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . (8)

23(c)(5) Association of Fish

Handling and/or Return

System with Other

Technologies [Provide

Technology Codes from

Matrices 19(b), 21(b), and

22(b), pages 24, 29, and 32. 

Use codes A through BB. 

Please separate multiple

codes per response column

with a comma.]

23(c)(6) Final destination of

diverted or impinged

organisms [Check all that

apply]

Returned to water body

outside the influence of 

the plant’s intake and

discharge system . . . (1)

Returned via the discharge

canal ............. (2)

Landfilled or otherwise

disposed of . . . . . . . . (3)

Other

(please describe below): (4)

Returned to water body

outside the influence of 

the plant’s intake and

discharge system . . . (1)

Returned via the discharge

canal ............. (2)

Landfilled or otherwise

disposed of . . . . . . . . (3)

Other

(please describe below): (4)

Returned to water body

outside the influence of 

the plant’s intake and

discharge system . . . (1)

Returned via the discharge

canal ............. (2)

Landfilled or otherwise

disposed of . . . . . . . . (3)

Other

(please describe below): (4)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

38 Technical Toll-Free Help Line: 1-800-246-3113 

CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Fish Handling and/or Return System Technology Data by Cooling Water Intake Structure (CWIS)

Item No. Data Requested

Fish Handling and/or Return

System Technology #1

Fish Handling and/or Return

System Technology #2

Fish Handling and/or Return

System Technology #3

23(c)(1) Type of Technology

[Provide Technology Code

from Matrix 23(b), page 35. 

Use codes W through BB.]

23(c)(2) Manufacturer (Mfr.) and

Model of System

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

Mfr: (1)

Model: (2)

Site-Specific Design . . (3)

Don’t Know . . . . . . . . . (8)

23(c)(3) Number of Systems of

this Type with Same

Design and Operational

Description

23(c)(4) Calendar Year(s)

Systems Installed

(e.g., 1991)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

Year(s): _______________

Don’t Know . . . . . . . . . (8)

23(c)(5) Association of Fish

Handling and/or Return

System with Other

Technologies [Provide

Technology Codes from

Matrices 19(b), 21(b), and

22(b), pages 24, 29, and 32. 

Use codes A through BB. 

Please separate multiple

codes per response column

with a comma.]

23(c)(6) Final destination of

diverted or impinged

organisms [Check all that

apply]

Returned to water body

outside the influence of 

the plant’s intake and

discharge system .... (1)

Returned via the discharge

canal .............. (2)

Landfilled or otherwise

disposed of . . . . . . . . . (3)

Other

(please describe below): (4)

Returned to water body

outside the influence of 

the plant’s intake and

discharge system .... (1)

Returned via the discharge

canal .............. (2)

Landfilled or otherwise

disposed of . . . . . . . . . (3)

Other

(please describe below): (4)

Returned to water body

outside the influence of 

the plant’s intake and

discharge system .... (1)

Returned via the discharge

canal .............. (2)

Landfilled or otherwise

disposed of . . . . . . . . . (3)

Other

(please describe below): (4)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 39

Other Design and Operational Data

24. In the matrix below, please provide the design through-screen velocity for each of the plant’s cooling

water intake structures (in fps) and flow basis.

NOTE: For CWISs that do not employ a screen technology only, please provide a design through-technology velocity at

the technology where organisms are most likely to be impinged or entrained. For example, at a submerged intake structure

that employs a velocity cap, provide the velocity going through the velocity cap.

Design Through-Screen Velocity Data by Cooling Water Intake Structure (CWIS) Matrix ___ of ___

Response space has been provided for two CWISs. If your plant has more than this number of CWISs, please copy the matrix and change the

CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

CWIS 

[Please insert same no. or name

as in Question 3 in Section A]

24(a) Design Through-Screen Velocity (in fps) _________________ fps (1)

Don’t Know . . . . . . . . . . . . . . . (8)

 _________________ fps (1)

Don’t Know . . . . . . . . . . . . . . (8)

24(b) Source Water Flow Basis for Design

Through Screen Velocity Critical Low Flow . . . . . . . . . . . (1)

Mean Flow ............... (2)

Don’t Know . . . . . . . . . . . . . . . (8)

Critical Low Flow . . . . . . . . . . (1)

Mean Flow .............. (2)

Don’t Know . . . . . . . . . . . . . . (8)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

40 Technical Toll-Free Help Line: 1-800-246-3113 

25. For each cooling water intake structure, please note in the following matrices, the daily maximum and

daily minimum cooling water intake flows (in GPD) by month for calendar years 1996 to 1998. [Daily

average flows are calculated by summing all of the actual or calculated daily flows during a particular month and

dividing that sum by the total number of calendar days in the month.] Also, for each month during these

calendar years, please note the average daily flow (in GPD). Finally, please indicate the number of

operating hours by month by calendar year.

If flow data are unavailable for a given reporting month, please check () the response titled “No Data.”

For each calendar year, please indicate whether the data provided are “Actual” or “Calculated.”

NOTE: A separate matrix has been provided for two cooling water intake structures. If you have more than two cooling

water intake structures, please copy the matrix and change the cooling water intake structure code names or numbers as

appropriate. Please insert any additional matrices into this portion of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.
Section

Cooling Water Intake Structure Technology Information C

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 41

 CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Actual Intake Flow Rates by Cooling Water Intake Structure (CWIS) by Month

for Calendar Years 1996 to 1998

(A) (B) (C) (D) (E)

Item

No. Month Flow Data Requested

Flows in 1996

Actual (1)

Calculated (2)

Flows in 1997

Actual (1)

Calculated (2)

Flows in 1998

Actual (1)

Calculated (2)

25(a) January Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(b) February Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(c) March Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(d) April Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(e) May Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(f) June Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)
Part 2. Technical Data

42 Technical Toll-Free Help Line: 1-800-246-3113 

 CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Actual Intake Flow Rates by Cooling Water Intake Structure (CWIS) by Month

for Calendar Years 1996 to 1998

(A) (B) (C) (D) (E)

Item

No. Month Flow Data Requested

Flows in 1996

Actual (1)

Calculated (2)

Flows in 1997

Actual (1)

Calculated (2)

Flows in 1998

Actual (1)

Calculated (2)

25(g) July Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(h) August Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(i) September Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(j) October Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(k) November Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(l) December Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(m) Annual Totals Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)
Section

Cooling Water Intake Structure Technology Information C

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 43

CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Actual Intake Flow Rates by Cooling Water Intake Structure (CWIS) by Month

for Calendar Years 1996 to 1998

(A) (B) (C) (D) (E)

Item

No. Month Flow Data Requested

Flows in 1996

Actual (1)

Calculated (2)

Flows in 1997

Actual (1)

Calculated (2)

Flows in 1998

Actual (1)

Calculated (2)

25(a) January Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(b) February Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(c) March Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(d) April Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(e) May Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(f) June Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)
Part 2. Technical Data

44 Technical Toll-Free Help Line: 1-800-246-3113 

CWIS _____________ [Please insert same no. or name as in Question 3 in Section A] Matrix ___ of ___

Actual Intake Flow Rates by Cooling Water Intake Structure (CWIS) by Month

for Calendar Years 1996 to 1998

(A) (B) (C) (D) (E)

Item

No. Month Flow Data Requested

Flows in 1996

Actual (1)

Calculated (2)

Flows in 1997

Actual (1)

Calculated (2)

Flows in 1998

Actual (1)

Calculated (2)

25(g) July Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(h) August Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(i) September Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(j) October Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(k) November Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(l) December Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)

25(m) Annual Totals Daily Maximum GPD (1) GPD (1) GPD (1)

Daily Minimum GPD (2) GPD (2) GPD (2)

Daily Average GPD (3) GPD (3) GPD (3)

No. Operating Hours Hours (4) Hours (4) Hours (4)

No Data No Data (8) No Data (8) No Data (8)
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 45

Yes (1)

No (2) SKIP TO Q.27,

Next Page

Don’t

Know(8) SKIP TO Q.27,

Next Page

26. (a) Has the plant ever implemented cooling water intake flow

reduction measures to reduce entrainment?

(b) In the matrix below, please provide more specific

information on how the plant has reduced cooling water

intake flows to reduce entrainment.

Flow Reduction Data to Reduce Entrainment (by Plant) Matrix ___ of ___

Item No. Requested Information Plant Information 

26(b)(1) How has flow been reduced? [Please check () all flow

reduction alternatives that have been used.]

Cooling Water System(s) Was/(were) Modified

From Once-through to Recirculating ................. (1)

Altered Operations Periodically to Minimize the Use of

Cooling Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Other (please describe below): ...................... (3)

26(b)(2) Flow Changes (in GPD) [For plants that have instituted

flow reduction measures on more than one occasion, provide

information for an instance most representative of all your

flow reduction measures.]

From GPD to GPD

26(b)(3) Flow Reduction Period [Please check () only one

response.] NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (9)

Seasonal (please indicate seasons flow reduced below): . . (1)

Periodic (please indicate periods flow reduced below): ... (2)

Other (please describe below): ...................... (3)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

46 Technical Toll-Free Help Line: 1-800-246-3113 

Yes (1)

No (2) SKIP TO Q.28

CWIS ______

CWIS ______

CWIS ______

Yes (1)

No (2) SKIP TO Q.29

Yes (1)

No (2)

SKIP TO 

Section D,

Page 49

Don’t

Know(8)

SKIP TO 

Section D,

Page 49

27. (a) Does the plant reduce the temperature of its heated

discharge by pumped dilution with surface water?

(b) Which cooling water intake structures are used to collect the

dilution water? [Please insert same no. or name as in Question 3

in Section A.]

28. (a) Does the plant employ ice control systems at any of its

cooling water intake structures?

(b) What type of ice control systems are employed at the plant’s

cooling water intake structures? [Please check () all ice control

systems that apply.]

Hot Water Recirculation ...................... (1)

Air Bubbles ................................. (2)

Propeller Agitation .......................... (3)

Other (Please describe below): . . . . . . . . . . . . . . . . . . (4)

Ineffective Technologies

29. (a) Has your plant ever used any technology(ies) to minimize

impingement and/or entrainment that was/ (were) later

determined to be ineffective? [Note that pilot studies will be

addressed in Section D.]

(b) For each of the cooling water intake structure, please

provide information on some of the plant’s experiences of

using technologies later found ineffective at minimizing

impingement and/or entrainment. Include examples of any

experiences that you can recall and that you believe are the

most telling regarding a technology’s effectiveness at

minimizing impingement and/or entrainment.
Section

Cooling Water Intake Structure Technology Information C

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 47

 CWIS [Please insert same no. or name as in Question 3 in Section A] Matrix of 

Ineffective Technology Data

Response space has been provided for three separate experiences. If your plant has had more than this number of experiences, please copy the

matrix and continue noting your technologies. Please, however, change the technology numbers in the table heading to reflect the additional

technologies (e.g., Ineffective Technology “#4,” “#5,” etc.). Insert any additional matrices into this section of the questionnaire, and identify individual

matrix sheets as Matrix “1 of 3,” “2 of 3,” etc. Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets

as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested Ineffective Technology #1 Ineffective Technology #2 Ineffective Technology #3

29(b)(1) Code for Ineffective

Technology [Provide

Technology Code from Matrices

19(b), 21(b), 22(b), and 23(b) on

pages 24, 29, 32, and 35. Use

Technology Codes A through BB.]

29(b)(2) Reasons Technology

Ineffective [Please check ()

all reasons that apply.]

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than 

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

29(b)(3) Code for Technology That

Replaced Ineffective

Technology [Provide

Technology Code from Matrices

19(b), 21(b), 22(b), or 23(b) on

pages 24, 29, 32, and 35. Use

Technology Codes A through BB.]

_____________________ (1)

No Changes Made . . (2)

_____________________ (1)

No Changes Made . . (2)

_____________________ (1)

No Changes Made . . (2)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

48 Technical Toll-Free Help Line: 1-800-246-3113 

CWIS [Please insert same no. or name as in Question 3 in Section A] Matrix of 

Ineffective Technology Data

Response space has been provided for three separate experiences. If your plant has had more than this number of experiences for which you are

willing to provide information, please copy the matrix and continue noting your technologies. Please, however, change the technology numbers in the

table heading to reflect the additional technologies (e.g., Ineffective Technology “#4,” “#5,” etc.). Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc. Insert any additional matrices into this section of the questionnaire,

and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No. Data Requested Ineffective Technology #1 Ineffective Technology #2 Ineffective Technology #3

29(b)(1) Code for Ineffective

Technology [Provide

Technology Code from Matrices

19(b), 21(b), 22(b), and 23(b) on

pages 24, 29, 32, and 35. Use

Technology Codes A through BB.]

29(b)(2) Reasons Technology

Ineffective [Please check ()

all reasons that apply.]

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than 

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

Negatively Affected

Heat Rate Efficiency . (1)

Negatively Affected

Operations Other Than

Heat Rate Efficiency . (2)

Ineffective with Species

Present at CWIS . . . . (3)

Capital Costs Too 

High . . . . . . . . . . . . . (4)

O&M Costs Too 

High . . . . . . . . . . . . . (5)

Not Suitable Based on

Site and/or Structural

Characteristics . . . . . (6)

Other

(please describe below): (7)

29(b)(3) Code for Technology That

Replaced Ineffective

Technology [Provide

Technology Code from Matrices

19(b), 21(b), 22(b), or 23(b) on

pages 24, 29, 32, and 35. Use

Technology Codes A through BB.]

_____________________ (1)

No Changes Made . . (2)

_____________________ (1)

No Changes Made . . (2)

_____________________ (1)

No Changes Made . . (2)
Section

Environmental and Technology Studies and Mitigation Activities D

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 49

Section D: Environmental and Technology Studies and Mitigation Activities

Please answer the questions in this section of the questionnaire for only those intake structures that directly withdraw surface

water to support contact and noncontact cooling operations within the plant. Consider only those intake structures presently

operating and those temporarily offline and expected to return to service. Do not consider intake structures planned or under

construction or permanently offline.

In addition, consider only those cooling water intake structures where the facility has previously undertaken studies that would

provide the information requested.

30. Name the aquatic species that are most susceptible to impingement and/or entrainment by one or more

of the plant's cooling water intake structures (CWISs).

NOTE: Please list up to 12 species that are most susceptible to impingement and/or entrainment.

1 _____________________________________________

2 _____________________________________________

3 _____________________________________________

4 _____________________________________________

5 _____________________________________________

6 _____________________________________________

7 _____________________________________________

8 _____________________________________________

9 _____________________________________________

10 _____________________________________________

11 _____________________________________________

12 _____________________________________________

Don’t Know. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (8)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

50 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2)

SKIP TO

Section E,

Page 61

DEFINITION For the purposes of this questionnaire, the phrase “an

environmental impact” means human induced change

or pressure on the natural environment.

DEFINITIONS For the purposes of this questionnaire, impingement refers to

the trapping and holding of aquatic organisms to the outer part

of an intake structure or against screening devices during periods of cooling water

withdrawal. 

For the purposes of this questionnaire, entrainment refers to the merging of small

aquatic organisms with the flow of cooling water entering and passing through a

cooling water intake structure, and thus, into a water system.

31. Has your plant ever conducted one or more of the following

types of studies at any of its cooling water intake structures: 

• study to provide data and information to regulators so they

can determine if an adverse environmental impact is

occurring and/or if the location, design, construction, and

capacity of an intake structure reflects the best technology

available for minimizing adverse environmental impacts

[i.e., Section 316(b) Demonstration Study] 

• discrete biological study of impingement and/or

entrainment

• discrete study to evaluate the effectiveness of a technology

to minimize impingement and/or entrainment?

• ongoing monitoring study of impingement and/or

entrainment
Section

Environmental and Technology Studies and Mitigation Activities D

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 51

Section 316(b) Demonstration Studies and/or Other Discrete Biological Study of Impingement and/or

Entrainment

32. (a) Please indicate the number of discrete biological studies of impingement and/or entrainment,

other than those that may have been associated with any Section 316(b) Demonstrations, that your

plant has conducted since January 1, 1976.

Number of Studies: _______________

(b) Please answer the questions in the matrix beginning on the following page regarding the Section

316(b) Demonstration Study and/or other type of discrete biological study of impingement and/or

entrainment conducted by your plant. NOTE: The following matrix requests information on each Section

316(b) demonstration study conducted by your plant. In addition, provide information on the most representative

other type of discrete biological study of impingement and/or entrainment. You may have to copy the following

matrix to be able to accommodate all information.

Information about Each Section 316(b) Demonstration Study and Most Representative Other

Biological Study Matrix ___ of ___

Response space has been provided for one study. If your plant has conducted more than this number of Section 316(b) studies and other discrete

biological impingement and/or entrainment studies, please copy the matrix. Complete a separate matrix for each study. Please insert any additional

matrix sheets into this section of the questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item No. Data Requested Impingement Entrainment

32(b)(1) Please provide the name of the

study [Please check () if the study

was a Section 316(b) demonstration

study.]

Name:

_______________________________(1)

Section 316(b) Demonstration 

Study . . . . . . . . . . . . . . . . . . . . . . . (2)

Name:

_______________________________(1)

Section 316(b) Demonstration 

Study . . . . . . . . . . . . . . . . . . . . . . . (2)

32(b)(2) What were the starting and

ending dates (in months

and years) for the study

(e.g., 12/1995)?

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . (8)

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . (8)

32(b)(3) What was the period of

impingement and/or entrainment

monitoring (if different from

period of study) (e.g., 12/1995)?

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . . . . (8)

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . (8)

32(b)(4) How many cooling water intake

structures (CWISs) were

covered by the study? Of this

number, how many are currently

operating or temporarily offline? 

[Please note CWISs by using same

nos. or names as in Question 3 in

Section A. Separate CWISs by a

comma if more than one was

evaluated.]

Total No. of CWISs Evaluated: ______(1)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

Numbers of CWISs Studied That Are

Currently Operating or Temporarily

Offline: _____, _____, _____, _____

Don’t Know . . . . . . . . . . . . . . . . . . (8)

Total No. of CWISs Evaluated:_______(1)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

Numbers of CWISs Studied That Are

Currently Operating or Temporarily

Offline: _____, _____, _____, _____

Don’t Know . . . . . . . . . . . . . . . . . . (8)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

52 Technical Toll-Free Help Line: 1-800-246-3113

Information about Each Section 316(b) Demonstration Study and Most Representative Other

Biological Study Matrix ___ of ___

Item No. Data Requested Impingement Entrainment

32(b)(5) Was the number of organisms

impinged or entrained,

counted? 

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

If you marked “no” or “don’t know”

please SKIP to Item 32(b)(8).

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

If you marked “no” or “don’t know”

please SKIP to Item 32(b)(8).

32(b)(6) Were counts of organisms

impinged or entrained

identified by species?

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

32(b)(7) Were counts of organisms

impinged or entrained

identified by life stage? 

[Please check () all that

apply.]

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

If you marked “no” or “don’t know”

please SKIP to Item 32(b)(8).

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

If you marked “no” or “don’t know”

please SKIP to Item 32(b)(8).

32(b)(8) Indicate the life stages that

were identified and counted. Eggs/Larval Stages: ........... (1)

 Juveniles: . . . . . . . . . . . . . . . . . . . (2)

 Adults: . . . . . . . . . . . . . . . . . . . . . . (3)

 Total Number: . . . . . . . . . . . . . . . . (4)

Other

(please describe below): . . . . . . . . . (5)

 Eggs/Larval Stages: .......... (1)

 Juveniles: . . . . . . . . . . . . . . . . . . (2)

 Adults: . . . . . . . . . . . . . . . . . . . . . (3)

 Total Number: . . . . . . . . . . . . . . . (4)

Other

(please describe below): . . . . . . . . (5)

32(b)(9) Was the mortality rate of

impinged or entrained

organisms estimated?

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

32(b)(10) For any aquatic species, was

an analysis undertaken which

considered population level

impacts related to

impingement and/or

entrainment.

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)
Section

Environmental and Technology Studies and Mitigation Activities D

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 53

Information about Each Section 316(b) Demonstration Study and Most Representative Other

Biological Study Matrix ___ of ___

Item No. Data Requested Impingement Entrainment

32(b)(11) What was the cost of the

study? [Please check () whether

the cost figure provided is an

estimate or based on actual data.]

Cost $____________________

 Actual (1) Estimate (2)

Year Cost Incurred __________________ (3)

No Data Available to 

Provide Estimate . . . . . . . . . . . . . . . . . . (8)

Cost $____________________

 Actual (1) Estimate (2)

Year Cost Incurred ________________ (3)

No Data Available to 

Provide Estimate . . . . . . . . . . . . . . . . . (8)

32(b)(12) Are study methodology and

findings readily available for

review by EPA? [Please provide

explanation of a “no” response.]

Yes ............................ (1)

No (please explain): .............. (2)

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No (please explain): ........... (2)

32(b)(13) Did study findings lead to

changes being made in the

types of CWIS technologies

being used?

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (3)

On-going Study, Findings Not Yet

Available . . . . . . . . . . . . . . . . . . . . . (4)

If you marked “no,” “don’t know,” or 

“on-going study” please SKIP to Item

32(b)(15) in the matrix.

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (3)

On-going Study, Findings Not Yet

Available . . . . . . . . . . . . . . . . . . . . (4)

If you marked “no,” “don’t know,” or 

“on-going study” please SKIP to Item

32(b)(15) in the matrix.

32(b)(14) Please briefly describe the

type of technology changes

that were made, why they

were made, and whether the

changes were related to an

existing CWIS. [Please identify

the CWIS using the code

established in Question 3, Section

A, of the questionnaire. Separate

identification codes by a comma if

more than one CWIS was affected.]

Example: The study led the

plant to switch from

Technology “X” on CWIS #1 to

Technology “Y” because

Technology “Y” was found to

be more effective at

minimizing the impingement of

Organism “X.”

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

54 Technical Toll-Free Help Line: 1-800-246-3113

Information about Each Section 316(b) Demonstration Study and Most Representative Other

Biological Study Matrix ___ of ___

Item No. Data Requested Impingement Entrainment

32(b)(15) Did study findings lead to

changes being made in the

operation of the plant (e.g.,

changes in flow volumes,

periods of operation, etc.)?

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

On-going Study, Findings Not Yet

Available . . . . . . . . . . . . . . . . . . . . . (4)

If you marked “no,” “don’t know,” or “

on-going study” please SKIP TO Q.33.

Yes . . . . . . . . . . . . . . . . . . . . . . . . (1)

No . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Don’t Know . . . . . . . . . . . . . . . . . . (8)

On-going Study, Findings Not Yet

Available . . . . . . . . . . . . . . . . . . . . (4)

If you marked “no,” “don’t know,” or “

on-going study” please SKIP TO Q.33.

32(b)(16) Please briefly describe the

type of operational changes

that were made, why they

were made, and whether the

changes were related to an

existing CWIS. [Please identify

the CWIS using the code

established under Question 3,

Section A, of the questionnaire. 

Separate identification codes by a

comma if more than one CWIS was

affected.]

Example: The study led the

plant to reduce its flow on

CWISs #1 and #2 from “xx

MGD” to “yy MGD” each

during the months of “XX, XY,

and YY.” The flow reduction

was pursued to minimize the

impingement of juveniles of

Organism “X.”

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)
Section

Environmental and Technology Studies and Mitigation Activities D

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 55

Yes (1)

No (2) SKIP TO Q.34,

Page 58

Discrete Study to Evaluate the Effectiveness of a Technological

or Operational Change

33. (a) Has the plant performed any biological studies (not

including studies addressed in Q.32) to evaluate the

effectiveness of a technology or operational change (e.g.,

adjustment of flow volumes, periods of withdrawal, etc.) to

minimize impingement and/or entrainment of aquatic

organisms at one or more of the plant's cooling water intake

structures? 

(b) Please answer the questions in the matrix below for the

most recent or most representative impingement and/or

entrainment study of technological or operational changes

at one or more of the plant’s cooling water intake structures.

[This study should not have been part of any study

addressed in the previous question.]
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

56 Technical Toll-Free Help Line: 1-800-246-3113

Most Recent (or Most Representative) Impingement and/or Entrainment Study of Technology

and/or Operational Changes at Plant’s Cooling Water Intake Structures

Item

No. Data Requested Impingement Entrainment

33(b)(1) Please provide the name of

the study. _____________________________ _____________________________

33(b)(2) What were the starting and

ending dates of the study

(by month and year)

(e.g., 12/1995)?

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . . . (8)

33(b)(3) What was the period of

impingement and/or

entrainment monitoring

(if different from period of

study) (e.g., 12/1995)?

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Starting Date: Month____/Year____ 

Ending Date: Month____/Year____ 

Don’t Know . . . . . . . . . . . . . . . . . . . . (8)

33(b)(4) Please briefly describe the

type of technology and/or

operational changes that

were made, why they were

made, and whether the

changes were related to an

existing CWIS. [Please identify

CWISs by using the codes

established in Question 3, Section

A, of the questionnaire. Separate

identification codes by a

comma if more than one CWIS

was affected.]

Example: The study led the

plant to switch from

Technology “X” on CWIS #1

to Technology “Y” because

Technology “Y” was found to

be more effective at

minimizing the impingement

of Organism “X.”

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)

Type of Changes:(1)

Why Changes Made:(2)

Relationship to Existing CWISs:(3)
Section

Environmental and Technology Studies and Mitigation Activities D

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 57

Most Recent (or Most Representative) Impingement and/or Entrainment Study of Technology

and/or Operational Changes at Plant’s Cooling Water Intake Structures

Item

No. Data Requested Impingement Entrainment

33(b)(5) How many cooling water

intake structures (CWISs)

were covered by the study?

Of this number, how many

are currently operating or

temporarily offline? [Please

note CWISs by using same nos. or

names as in Question 3 in Section

A. Separate CWISs by a comma if

more than one was evaluated.]

Total Number of CWISs Evaluated: ____(1)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Numbers of CWISs Studied That Are

Currently Operating or Temporarily Offline:

_____, _____, _____, _____

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Total Number of CWISs Evaluated:____(1)

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

Numbers of CWISs Studied That Are

Currently Operating or Temporarily Offline:

_____, _____, _____, _____

Don’t Know . . . . . . . . . . . . . . . . . . . (8)

33(b)(6) What was the cost of the

study? [Please check ()

whether the cost figure provided

is an estimate or based on actual

data.]

Cost $____________________

 Actual (1) Estimate (2)

No Data Available to 

Provide Estimate . . . . . . . . . . . . . . . (8)

Cost $____________________

 Actual (1) Estimate (2)

No Data Available to 

Provide Estimate . . . . . . . . . . . . . . . (8)

33(b)(7) Are study methodology and

findings readily available for

review by EPA? [Please

provide explanation of a “no”

response.]

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No (please explain): ............ (2)

Yes . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No (please explain): ............ (2)
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

58 Technical Toll-Free Help Line: 1-800-246-3113

Yes (1)

No (2) SKIP TO Q.35,

Next Page

Ongoing Monitoring Study of Impingement and/or Entrainment

34. (a) Does the plant have an ongoing monitoring program to

evaluate the occurrence or rate of impingement and/or

entrainment at any of its cooling water intake structures?

(b) Complete the following matrix concerning your ongoing

monitoring program.

Ongoing Monitoring Program to Evaluate the Occurrence or Rate of Impingement and/or

Entrainment for the Plant’s Cooling Water Intake Structures

Item

No. Data Requested Impingement Entrainment

34(b)(1) How often do you monitor? 

[Please check () only one

response per category.]

Daily . . . . . . . . . . . . . . . . . . . . . . . . . . . (1)

Monthly . . . . . . . . . . . . . . . . . . . . . . . . . (2)

Seasonally . . . . . . . . . . . . . . . . . . . . . . (3)

Annually ........................ (4)

Other

(please describe below) ........... (5)

Daily . . . . . . . . . . . . . . . . . . . . . . (1)

Monthly . . . . . . . . . . . . . . . . . . . . (2)

Seasonally . . . . . . . . . . . . . . . . . (3)

Annually ................... (4)

Other

(please describe below) ...... (5)

34(b)(2) What is the average cost of the

monitoring programs? [Please

check () whether your cost

figure is an estimate or is

actual.]

Cost $ _____________________

 Estimate (1) Actual  (2)

Don’t Know . . . . . . . . . . . . . . . . . . . . . . (8)

Cost $ _____________________

 Estimate (1) Actual  (2)

Don’t Know . . . . . . . . . . . . . . . . . (8)

34(b)(3) Are monitoring data readily

available for review? [Please

explain a “no” response in the

space provided.]

Yes . . . . . . . . . . . . . . . . . . . . . . . . . . . . (1)

No (please explain below) ......... (2)

Yes . . . . . . . . . . . . . . . . . . . . . . . (1)

No (please explain below) .... (2)
Section

Environmental and Technology Studies and Mitigation Activities D

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 59

Yes (1)

No (2)

SKIP TO

Section E,

Page 61

Yes (1)

No (2)

Mitigation Activities

35. (a) Since 1980 has the plant carried out any measures to

compensate for or to mitigate potential environmental

impacts?

(b) Were any of these measures required by a Federal or state

permit and/or other regulatory requirement?

(c) What specific measures have been carried out to

compensate for or to mitigate potential environmental

impacts. [Please check () all measures that apply.]

Restocking of Fisheries ........................... (1)

Design, Construction, and/or O&M of Hatcheries ..... (2)

Habitat Restoration .............................. (3)

Designation of Conservation Areas ................. (4)

Other (please describe below):...................... (5)
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Section

Planned Cooling Water Intake Structures and Changes to Capacity E

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 61

Yes (1)

No (2) SKIP TO Q.37

Increase (1)

Decrease (2)

Same (3)

Yes (1)

No (2) STOP

If answer is No, please

stop here. You are

finished with Part 2 of

the questionnaire.

Please continue to

Part 3, Financial and

Economic Data.

 __________

Section E: Planned Cooling Water Intake Structures and Changes to Capacity

PLEASE ANSWER THE QUESTIONS IN THIS SECTION FOR ONLY THE PLANT’S COOLING WATER INTAKE

STRUCTURES THAT ARE PLANNED OR UNDER CONSTRUCTION and that will directly withdraw cooling water

from surface water. No data are being requested on (a) cooling water intake structures that are planned,

or under construction and that obtain cooling water via groundwater wells or (b) planned conduits to

other providers of cooling water (e.g., local water suppliers or other plants).

NOTES: You should not report data in this section of the questionnaire for intake structures which are

presently operational, temporarily offline, or permanently offline.

In this section of the questionnaire the term planned includes structures under construction but not yet

operational.

36. (a) Do you have planned modifications to your cooling

water intake systems that will change the capacity of

intake water collected for the plant?

(b) How will the planned modifications affect the cooling

water intake capacity?

37. Does the plant presently have any planned cooling water

intake structures that will directly withdraw cooling water

from surface water?

38. How many planned CWISs does the plant have that will

directly withdraw surface water to support, at least in part,

contact or non-contact cooling operations within the plant?
Part 2. Technical Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

62 Technical Toll-Free Help Line: 1-800-246-3113

39. Please provide the general design data requested in the matrix below for each of the plant’s planned

CWISs.

Profiles of Plant’s Planned Cooling Water Intake Structures (CWISs) Matrix ___ of ___

Response space has been provided for two planned CWISs. If your plant has more than this number of planned cooling water intake structures,

please copy the matrix and change the CWIS code numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and

identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item No. Data Requested Planned CWIS A Planned CWIS B

39(a) Plant-designated Number or Name

of CWIS

39(b) Associated Number of Intake Bays

on CWIS

39(c) Month and Year Planned CWIS

Expected to Begin Operation

(e.g., 12/1995)

______/______

Month / Year

______/______

Month / Year

39(d) Associated Cooling Water System(s)

or CWS(s) [Please insert CWS name

or number from Question 1 in Section

A of the questionnaire, or indicate

that the CWS is planned or under

construction.]

Associated with Existing CWS

(CWS Name _______) ........ (1)

Associated with Planned CWS . (2)

Associated with Existing CWS

(CWS Name _______) ........ (1)

Associated with Planned CWS . (2)

39(e) Is the Planned CWIS Associated

with a Recirculating CWS? No ....................... (1)

Yes ...................... (2)

If yes,

Cooling Tower ............. (3)

Cooling Pond .............. (4)

No ....................... (1)

Yes ...................... (2)

If yes,

Cooling Tower ............. (3)

Cooling Pond .............. (4)

39(f) Design Intake Capacity (in GPD) for

Planned CWIS

_________________________ GPD(1)

Don’t Know . . . . . . . . . . . . . . . . . (8)

_________________________ GPD(1)

Don’t Know . . . . . . . . . . . . . . . . . (8)
Section

Planned Cooling Water Intake Structures and Changes to Capacity E

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 63

Water Source Data

40. Please indicate the type of water source that will be used for each of the plant’s planned cooling water

intake structures, and please note the actual name of the water body.

Water Source Data for Plant’s Planned Cooling Water Intake Structures (CWISs) Matrix ___ of ___

Response space has been provided for two CWISs. If your plant has more than this number of planned intake structures, please copy the matrix and

change the CWIS code numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item 

No. Data Requested

Planned CWIS________

[Please insert same no. or name as 

Question 39 in Section E]

Planned CWIS________

[Please insert same no. or name as 

Question 39 in Section E.]

40(a) Type of Water Source [Please

check () all applicable sources per

CWIS.]

NOTE: If cooling water will be

withdrawn from a channel,

canal, reservoir, constructed

bay or cove, or other manmade

impoundment, please indicate

the originating source of the

water.

Lake or Pond (natural) .......... (1)

Non-tidal River or Stream . . . . . . . . (2)

Tidal River . . . . . . . . . . . . . . . . . . . . (3)

Estuary . . . . . . . . . . . . . . . . . . . . . . (4)

Ocean . . . . . . . . . . . . . . . . . . . . . . . (5)

Bay or Cove (natural, saline water) . (6)

Bay or Cove (natural, fresh water) . (7)

Lake or Pond (natural) ......... (1)

Non-tidal River or Stream . . . . . . . (2)

Tidal River . . . . . . . . . . . . . . . . . . . (3)

Estuary . . . . . . . . . . . . . . . . . . . . . (4)

Ocean . . . . . . . . . . . . . . . . . . . . . . (5)

Bay or Cove (natural, saline water) (6)

Bay or Cove (natural, fresh water) (7)

40(b) Name of Water Body
Part 2. Technical Data

64 Technical Toll-Free Help Line: 1-800-246-3113 

Yes (1)

No (2) SKIP TO Q.42,

Page 65

Cooling Water Intake Structure Technologies

41. (a) Will you employ traveling or other intake screens, passive

intake systems, fish diversion or avoidance systems, or

fish handling and/or return systems at any of the plant’s

planned CWISs?

(b) For each planned CWIS, please indicate in the matrix

below all the systems that will be employed.

Planned CWIS_____ [Please insert same no. or name as under Item 39, page 62.] Matrix ___ of ___

Planned System Technologies [Please check () all technologies that apply per CWIS.]

Response space has been provided for one planned cooling water intake structure (CWIS). If your plant has more than this number of planned

CWISs, please copy the matrix and change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the

questionnaire, and identify individual matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Traveling or Other Intake Screen System Technologies Fish Diversion or Avoidance System Technologies

Horizontal Drum (1) Velocity Cap (19)

Vertical Drum (2) Louver Barrier (20)

Rotating Disk (3) Water Jet Barrier (21)

Fixed (4) Fish Net Barrier (22)

Vertical Single Entry/Exit Traveling (5) Air Bubble Barrier (23)

Modified Vertical Single Entry/Exit Traveling (Ristroph) (6) Electrical Barrier (24)

Incline Single Entry/Exit Traveling (7) Light Barrier (25)

Single Entry/Double Exit Traveling (Center Flow) (10) Sound Barrier (26)

Double Entry/Single Exit Traveling (Dual Flow) (11) Cable or Chain Barrier (27)

Horizontal Traveling (12) Other (please describe): (28)

Other (please describe): (13) Passive Intake System Technologies

Fish Handling and/or Return System Technologies Wedge-Wire Screen (29)

Fish Pump (14) Perforated Pipe (30)

Fish Conveyance System (Troughs or Pipes) (15) Porous Dike (31)

Fish Elevator/Lift Baskets (16) Leaky Dam (32)

Fish Bypass System (17) Artificial Filter Bed (33)

Fish Holding Tank (18) Other (please describe): (34)
Section

Planned Cooling Water Intake Structures and Changes to Capacity E

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 65

Yes (1)

No (2)

Section 316(b)-Related Studies

42. Has your plant performed (or does your plant expect to

perform) any studies to demonstrate that the location, design,

construction, and capacity of one or more of its planned

cooling water intake structures reflect the best technology

available for minimizing adverse environmental impacts?
THIS PAGE INTENTIONALLY LEFT BLANK
Part 3: Economic and Financial Data

Detailed Industry Questionnaire:

Phase II Cooling Water Intake Structures

Traditional Steam Electric Utilities

January 2000
THIS PAGE INTENTIONALLY LEFT BLANK
Section

General Information About the Plant A

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 1

Section A: General Information About the Plant

Several questions in this part of the questionnaire request information about your “reporting years” 1996, 1997, and 1998. These

time periods should be the same as the periods for which your utility reports information on FERC Form 1, Form EIA-412, or

RUS Form-12. Document I, Question 3 of this questionnaire requests identification of these time periods. If you are unsure

about your utility’s reporting year, you should contact your utility headquarters for assistance.

NOTE: Section A requests general information about your plant. Some of the data asked about your plant may not be kept on

your plant’s premises. You may need to contact your utility’s headquarters for help in completing this and the following section.

1. (a) Please indicate the identification code of this plant as used when submitting reports to the Energy

Information Administration (EIA).

EIA Plant Identification Code:___________________

[ Check () here if none.]

(b) Please indicate the identification code of this plant as used when reporting to the Rural Utilities

Service (RUS).

RUS Plant Identification Code:___________________

[ Check () here if none.]

(c) Please indicate the DUNS number for this plant.

DUNS Number:___________________

[ Check () here if none.]

2. Please provide the following information about the person who will serve as a contact for questions

about your plant’s responses to Part 3: Economic and Financial Data. [NOTE: The plant contact person

should be the person most knowledgeable about the information requested in this part of the survey. This person is not

required to be the certifying official.]

Name of Plant Contact Person: ___________________________________________________ (1)

Title of Plant Contact Person:____________________________________________________ (2)

Employer (full legal name): ________________________________________________________ (3)

Phone: ( )_____________________ (4a) Fax: ( ) _______________________ (4b)

Mailing Address/PO Box: ______________________________________________________ (5)

City, State, ZIP Code: __________________________________________________________ (6)

Best Time to Contact: _________________________________________________________ (7)
Part 3: Economic and Financial Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

2 Economic and Financial Toll-Fee Help Line: 1-888-295-6199

 Yes (1)

 No (2) SKIP TO Q.4

3. (a) During reporting year 1998, did the plant engage in

economic activities other than the generation of electricity?

NOTE: Activities may include, but are not limited to, production

activities, the sale of steam, coal or ash, waste combustion, or the

leasing of land. Please include only those economic activities that are

carried out by the plant’s owner; do not include activities carried out

on the plant’s property by third parties.

(b) In the table below, please provide:

(1) a brief description of each of the plant’s economic

activities other than the generation of electricity [If your

plant engages in more than four such activities, please only list

the four activities that you consider most important

economically];

(2) the EIA identification numbers of the units that were

associated with each activity (if an activity was not

associated with any of the generating units, please list

“none;” alternatively, if an activity was associated with

all of the generating units, you may list “all”);

(3) whether the activity used cooling water during reporting

year 1998;

(4) the names or numbers of the cooling water intake

structures that were associated with each activity (if an

activity was not associated with a cooling water intake

structures, please list “none”).

NOTE: When completing column (4) of this question, please use the same

name or number to identify each cooling water intake structure as was used

in Question 3 of Part 2: Technical Data of this questionnaire. For example,

the cooling water intake structure designated as “CWIS A” in Question 3 of

Part 2 should also be identified as “CWIS A” in this question.
Section

General Information About the Plant A

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 3

 Yes (1)

 No (2) SKIP TO Q.6

DEFINITION For the purposes of this questionnaire, rural electric

cooperatives are electric utilities that are owned by their

members and are established to provide electricity to those

members. Cooperatives are incorporated under State law and are generally exempt

from Federal income tax laws. Most electric cooperatives have been initially

financed by the Rural Utilities Service, U.S. Department of Agriculture.

Other Economic Activities

Item

No.

(1)

Economic Activity

(2)

Associated with

Unit #(s)

(3)

Was Cooling

Water Used?

(4)

Associated with

CWIS #(s)

3(b)(1) (1) (2)  Yes (3a)  No (3b) (4)

3(b)(2) (1) (2)  Yes (3a)  No (3b) (4)

3(b)(3) (1) (2)  Yes (3a)  No (3b) (4)

3(b)(4) (1) (2)  Yes (3a)  No (3b) (4)

(c) What were the revenues, if any, and costs in reporting year

1998 associated with each of the economic activities listed

in Q.3.b?

NOTE: You may estimate the amounts requested in this question if

actual data are not available. Column (2): Please list only those costs

that are incurred in addition to the costs of generating electricity.

Revenues and Costs Associated with Other Economic Activities

Item No. (1) 1998 Revenues (2) 1998 Costs

3(c)(1) $ (1) $ (2)

3(c)(2) $ (1) $ (2)

3(c)(3) $ (1) $ (2)

3(c)(4) $ (1) $ (2)

4. Is this plant operated by a utility that is classified as a rural

electric cooperative?
Part 3: Economic and Financial Data

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

4 Economic and Financial Toll-Fee Help Line: 1-888-295-6199

5. Please complete the following table for reporting years 1996, 1997, and 1998. Please report the book

value for the line items requested. If this plant is partly owned by other entities besides your utility,

provide data for the entire plant, not only the share owned by your utility.

Plant-Level Balance Sheet Information (Report monetary values in whole dollars.)

Reporting Year:

1996 1997 1998

5(a) Land and Land Rights $ (1) $ (2) $ (3)

5(b)

Structures, Improvements

and Equipment Costs

(original costs)

$ (1) $ (2) $ (3)

5(c) TOTAL COST OF PLANT:

Add 5. a and b $ (1) $ (2) $ (3)

5(d) COST PER KW OF

INSTALLED CAPACITY $ (1) $ (2) $ (3)
Section

Information for Steam Electric Generating Units B

 INFORMATION ON THIS PAGE SHOULD BE CONSIDERED CONFIDENTIAL BUSINESS INFORMATION 

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities 5

 Yes (1)

 No (2) You do not have to

provide any further

information for this

generating unit. Please

refer to the instructions

on page iv after you

have completed Section

B for each steam

electric unit operated by

this plant.

Section B: Information for Steam Electric Generating Units

Please provide information only for those steam electric units that are operating, available to operate,

on scheduled or forced outage, on cold standby, or that were sold to a nonutility but are still operated

by the plant. (Do not provide information for retired units.)

If your plant has more than one such steam electric generating unit, you will need to copy this

section (pages 5 and 6) to accommodate data for all of the plant’s units. If you submit more than one

copy of this section, please indicate in the space at the top right corner of each copy the copy number

and the total number of copies you will submit (e.g., Copy 1 of 4, Copy 2 of 4, etc.).

NOTE: This section asks for information about steam electric generating units located at the plant as

of December 31, 1998. Please also include information on steam electric generators that are part

of a combined-cycle unit.

6. (a) Indicate the identification code(s) of the generator(s)

associated with this generating unit as used when reporting

to the EIA on Forms EIA-767 and EIA-860. (See Form

EIA-860, Schedule III, Section A, Item 1.b)

EIA Generator Identification Code(s):_____________

(b) Since January 1, 1996, has this generating unit used cooling

water directly withdrawn from surface water by your plant?

7. Indicate the planned retirement date for this steam electric

generating unit. [Indicate the month, if known, and the year (e.g.,

01/1995).]

______/______

month year 

[ Check () here if no retirement date has been determined.]
Part 3: Economic and Financial Data

6 Economic and Financial Toll-Free Help Line: 1-888-295-6199

8. Please list all cooling water intake structures that are associated with this steam electric generating

unit.

NOTE: When completing this question, please use the same name or number to identify each cooling water intake

structure as was used in Question 3 of Part 2: Technical Data of this questionnaire. For example, the cooling water

intake structure designated as “CWIS A” in Question 3, Part 2 should also be identified as “CWIS A” in this question.

Cooling Water Intake Structures Associated with This Unit:

 CWIS ________ (1)  CWIS ________(2)  CWIS ________(3)

9. Please complete the following table for reporting years 1996, 1997, and 1998 for this steam electric

generating unit. [If this generating unit is owned by other entities besides this utility, please provide data for the

entire generating unit, not only the share owned by this utility.]

Reporting Year

1996 1997 1998

9(a) Net Electricity

Generation, Exclusive of

Plant Use (in megawatt

hours)

MWh (1) MWh (2) MWh (3)

9(b) Number of Hours in

Operation in each Year hours (1) hours (2) hours (3)

9(c) Net Peak Demand on

Unit — MW (60 minutes) MW (1) MW (2) MW (3)

9(d) Quantity (Units) of Fuel

Burned (Coal-tons of

2,000 lbs; Oil-barrels

of 42 gals.; Gas-Mcf;

Nuclear or Otherindicate)

Coal: (1a) Coal: (2a) Coal: (3a)

Oil: (1b) Oil: (2b) Oil: (3b)

Gas: (1c) Gas: (2c) Gas: (3c)

Nuclear: (1d) Nuclear: (2d) Nuclear: (3d)

Other: (1e) Other: (2e) Other: (3e)

9(e) Average Cost of Fuel

per Unit of Fuel Burned

Coal: $ (1a) Coal: $ (2a) Coal: $ (3a)

Oil: $ (1b) Oil: $ (2b) Oil: $ (3b)

Gas: $ (1c) Gas: $ (2c) Gas: $ (3c)

Nuclear: $ (1d) Nuclear: $ (2d) Nuclear: $ (3d)

Other: $ (1e) Other: $ (2e) Other: $ (3e)

 PLEASE STOP HERE. YOU ARE FINISHED WITH THE DETAILED INDUSTRY QUESTIONNAIRE:

PHASE II COOLING WATER INTAKE STRUCTURES. PLEASE REMEMBER TO RETURN YOUR

QUESTIONNAIRE PACKAGE WITH A COMPLETED CERTIFICATION STATEMENT. THANK YOU.
Glossary to Questionnaire

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-1

Plan View

Glossary to Questionnaire

NOTE: The following terms are defined for purposes of this questionnaire only. The definitions at present do not have any

legal meaning with respect to Section 316(b) of the Clean Water Act.

7Q10 Value: The lowest average 7 consecutive day low flow with an average recurrence frequency of

once in 10 years determined hydrologically.

Air Conditioning: The process and equipment used to control the temperature and humidity of indoor

air. Cooling water is used in some types of air conditioning systems.

Annual Average Flow (in Million Gallons per Day): The total flow calculated by summing actual daily

flows (in million gallons) and dividing by 365 days.

Annual Cooling Water Intake Flow Rate: The total volume of cooling water withdrawn by a specific

intake structure per calender year.

Average Daily Intake Flow: The total volume of cooling water withdrawn by a specific intake structure

over a 24-hour day.

Bar Rack/Trash Rack: A device consisting of parallel spaced bars placed at or near the opening of an

intake structure to mechanically stop debris and /or large organisms from entering a facility’s water system.

Bay or Cove (natural or constructed): An inlet created when the shoreline of a water body is indented.

Bays are generally larger than coves but are smaller than gulfs. Coves are generally sheltered. Bays and

coves are considered part of the cooling water intake structure. [NOTE: The Chesapeake Bay and the San Francisco

Bay are examples of estuaries even though the term bay appears in their name.] See Figure 1 for a graphical view of an intake structure

incorporating a bay or cove.

Figure 1. Example of an Intake Structure Incorporating a Bay or Cove
G-2 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Combined-Cycle Unit: An electric generating unit that consists of one or more gas turbines or internal

combustion engines and one or more steam boilers. Part of the required input to the boiler(s) is provided

by the exhaust gas (waste heat) of the combustion turbine(s).

Confluence of Tributaries: The point of juncture of two or more tributaries.

Contact Cooling Water: Cooling water that directly meets any raw material, intermediate product,

finished product, by-product, or water product as part of a plant’s operation.

Conservation Pool: Measures of the minimum depth of water needed in a reservoir to ensure proper

performance of the system relying upon the reservoir. Conservation pools are measurements of the

elevation of the water in relation to the elevation of the dam.

Cooling Canal/Channel: An artificial, channelized waterway used to transfer heat added to water from

operations within a plant to the atmosphere.

Cooling Lake: A body of water that is formed by the construction of a dam, berm, or levee in a natural

watershed and which relies on the banks of the natural watershed to provide the majority of the

containment of the impounded water. A cooling lake is a means for transferring to the atmosphere heat

added to water by facility operations.

Cooling Operations: Activities that transfer heat from one medium or activity to cooling water (with the

exception of nonprocess air conditioning).

Cooling Pond: A body of water that is formed by the construction of a dam, berm, or levee on land, has

no significant watershed, and which requires the manmade containment surround most or all of the

impounded water. A cooling pond is a means for transferring to the atmosphere heat added to water by

facility operations.

Cooling Tower: A structure which functions as a heat exchanger and is designed to provide cooling by

the forced evaporation of water into an air stream using either mechanical energy (forced draft) or ambient

buoyancy (natural draft) to provide the movement of the air stream through the tower. 

Cooling Water: Refers to both contact and non-contact cooling water, including water used for air

conditioning, equipment cooling, evaporative cooling tower makeup, and dilution of effluent heat content.

The intended use of the cooling water is to absorb waste heat rejected from the process or processes

employed or from auxiliary operations on the plant’s premises.

Cooling Water Discharge Outfall: The total structure used to direct water that has been used for contact

and non-contact cooling purposes within a facility into Waters of the United States.

Cooling Water Intake Flow Rate: The total volume of cooling water withdrawn by a specific intake

structure over a specific time-period.
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Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-3

Cooling Water Intake Structure: The total structure used to withdraw water from a water source up to

the point of the first intake pump or series of pumps. The intended use of the cooling water is to adsorb

waste heat rejected from processes employed or from auxiliary operations on the plant’s premises. Single

cooling water intake structures may have multiple intake bays and could serve more than one generating

unit. If a plant has intake structures may withdraw water for purposes besides cooling, the entire intake

structure should be considered a cooling water intake structure under the questionnaire.

Cooling Water System: A system that provides water to/from a plant to transfer heat from equipment or

processes therein. The system includes, but is not limited to, water intake and outlet structures, cooling

towers, ponds, pumps, pipes, and canals/channels. For plants that use surface water for cooling, a system

begins at the first barrier(s) to ingress and/or egress by fish and other aquatic wildlife (e.g., at the weir wall,

at the trash rack, etc.) and ends at the discharge outlet(s). See also Cooling Water Intake Structure.

Cove: See Bay.

Critical Aquatic Habitat: Biological or physical features of an area that are essential for the conservation

and preservation of aquatic threatened or endangered species and may require special management

considerations or protection.

Daily Maximum Flow: The maximum flow recorded for any one day during a given month.

Daily Minimum Flow: The minimum flow recorded for any one day during a given month.

Design Through-Screen Velocity: The value assigned during the design phase of a CWIS to the speed

at which intake water passes through the intake screen (or other technology) against which organisms may

be impinged or where they may be entrained.

Discharge: When used without qualification, means the discharge of a pollutant. Discharge of a pollutant

means: (i) any discharge of any pollutant or combination of pollutants to waters of the United States from

any point source, or (ii) any addition of any pollutant or combination of pollutants to the waters of the

contiguous zone or the ocean from any point source other than a vessel or other floating craft which is

being used as a means of transportation. See also 40 CFR 122.2.

Discrete Biological Study of Entrainment: A study that has been distinctly undertaken to evaluate the

biological effects of entrainment over a specified time period. The study has discrete starting and ending

points. The purpose of the study is to evaluate the rate and/or number of organisms withdrawn from the

intake water body and into the cooling water flow and thus, into a cooling water system. The study may

involve evaluations of one or more intake structures.

Discrete Biological Study of Impingement: A study that has been distinctly undertaken to evaluate the

biological effects of impingement over a specified time period. The study has discrete starting and ending

points. The purpose of the study is to evaluate the rate and/or number of organisms are trapped against the

outer part of one or more intake structures during periods of cooling water withdrawal.
G-4 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Domestic Parent Firm: The highest level domestic business entity in a facility’s organizational structure.

A firm owned by another U.S. firm is not a domestic parent firm. On the contrary, a U.S. firm owned by

a foreign firm is a domestic parent firm.

DUNS Number: A number assigned to a business using the Data Universal Numbering System (DUNS)

developed by the Dun and Bradstreet Corporation.

Effluent: Outflow of wastewater from a plant to waters of the United States.

Electric Utility: Any corporation, person, agency, authority, or other legal entity or instrumentality that

owns and/or operates facilities within the United States, its territories, or Puerto Rico for the generation,

transmission, distribution, or sale of electric energy primarily for use by the public and files forms listed

in the Code of Federal Regulations, Title 18, Part 141. Facilities that qualify as cogenerators or small

power producers under the Public Utility Regulatory Policies Act (PURPA) are not considered electric

utilities.

Energy Information Administration (EIA): The independent statistical and analytical agency within

the U.S. Department of Energy (DOE). In support of its analytic activities, the EIA administers a series

of data collection efforts including Forms EIA-412, EIA-767, EIA-860, and EIA-861.

Entrainment: The merging of small aquatic organisms with the flow of cooling water entering and

passing through a cooling water intake structure, and, thus, into a cooling water system.

Environmental Impact: Human induced change or pressure on the natural environment.

Estuary: A semi-enclosed coastal body of water that has a free connection with the open sea and is

strongly affected by tidal action. In an estuary, sea water is mixed (and usually measurably diluted) with

fresh water from land drainage. [NOTE: The Chesapeake Bay and the San Francisco Bay are examples of estuaries even though

the term bay appears in their name. For the purposes of this questionnaire, the term “tidal river” means the seaward most reach of a

river/stream where the salinity is  0.5 ppt at a time of annual low flow its surface elevation responds to the effects of coastal lunar tides.

 Where the river salinity exceeds 0.5 ppt, the respective river reach will be viewed as estuarine.]

Existing Generating Unit: Units in operation, on standby, on cold standby, on test, in maintenance and

repair, out of service (all year), or on indefinite shutdown. Existing generation units do not include retired

or planned units.

Far-field: The area of a water body, from which cooling water is obtained, where the water velocity

and/or salinity/density is primarily influenced by ambient water conditions and where the cooling water

intake is shown to have minimal effect.

Federal Energy Regulatory Commission (FERC): A quasi-independent regulatory agency within the

Department of Energy having jurisdiction over interstate electricity sales, wholesale electric rates, hydrolicensing, natural gas pricing, oil pipeline rates, and gas pipeline certification.

FERC Form 1: The annual report of major electric utilities, licensees and others administered by the

Federal Energy Regulatory Commission (FERC). Utilities having, in each of three previous years, sales
Glossary to Questionnaire

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-5

or transmission services that exceed one of the following must submit the FERC Form 1: (1) One million

megawatt hours of total annual sales; (2) 100 megawatt hours of annual sales for resale; (3) 500 megawatt

hours of annual power exchanges delivered; or (4) 500 megawatt hours of annual wheeling for others

(deliveries plus losses).

Firm Power: Power or power-producing capacity intended to be available at all times during the period

covered by a guaranteed commitment to deliver, even under adverse conditions.

First Mortgage Bond: A secured debt security that has as collateral an asset or assets that have not

previously been mortgaged.

Fish and Shellfish Spawning and Nursery Area: A region selected by invertebrate and vertebrate

aquatic organisms for depositing eggs and for development of larval, post larval, and juvenile life stages.

Aquatic organisms may spawn their eggs directly into the water column (broadcast and pelagic spawners)

or attach eggs to hard- or soft-bottom substrate, including prepared nests (demersal or benthic spawners).

Fish Diversion or Avoidance System: Mechanisms designed to divert or induce fish to swim away from

cooling water intake structures. 

Fish Handling and/or Return System: Any system that collects, and/or transports live organisms from

an intake structure back to the source water body at a point away from the influence of the intake. 

Form EIA-412: The annual report of public electric utilities administered by the Energy Information

Administration.

Full-Time Equivalent Employee (FTE): The normalized unit for counting employees at a facility. One

FTE equals 2,000 hours of work (8 hours per day for 250 days) during a calendar year. As such, two parttime employees, each working 1,000 hours per year, would be counted together as one FTE.

Generating Unit: A combination of physically connected generator(s), reactor(s), boiler(s), combustion

turbine(s), or other prime mover(s) operated together to produce electric power.

Gross Electricity Generation: The total amount of electric energy produced by the generating units of

a given plant or nonutility.

Groundwater: Water found beneath the earth’s surface. It is usually held in aquifers and is often the

source of water for wells and streams.

Highest Level of Domestic Business Entity: An organizational concept used to define the ownership

structure of an electric utility. A firm owned by another U.S. firm is not the highest level of domestic

business entity. On the contrary, a U.S. firm owned by a foreign firm is the highest level of domestic

business entity.
G-6 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Plan View

Figure 2. Example of an Intake Structure Employing an Intake Canal

Horizontal Merger: The combination or consolidation of two or more electric utilities or other firms into

one business entity. The merged entity may carry the name of one of the original entities or may receive

a new name.

Impingement: The trapping and holding of larger aquatic organisms to the outer part of an intake

structure or against screening devices during periods of cooling water withdrawal.

Intake Bays: Temporary holding areas designed to direct water toward the pump well of a specific intake

structure.

Intake Canal/Channel (natural or constructed): A channelized conduit that diverts water before its

passage through screens or other filtering devices and before its entrance into an intake structure. See

Figure 2 for a graphical view of an intake structure employing an intake canal.

Intake Structure: See Cooling Water Intake Structure.

Kilowatt-hour: One thousand watt hours. A watt hour is a unit of work or energy equivalent to the power

of one watt operating for one hour.

Lake: A natural water body or an impounded stream, usually fresh, surrounded by land or by land and a

man-made retainer (e.g., a dam). Lakes may be fed by rivers, streams, springs, and/or local precipitation.

Latitude: The angular distance north or south of the equator measured in degrees or in hours, minutes,

and seconds along a meridian.

Local Water Supplier: An entity whose primary business objective is to provide potable water from

surface water and/or groundwater to year-round residents. In some instances, such suppliers may sell

nonpotable water (or water not meeting public health standards) to industrial and other facilities. Local

water suppliers can be privately and/or publicly-owned and operated.

Long-Term Firm Purchases of Power: Electricity purchase agreements that cannot unilaterally be

discontinued between now and January 1, 2003 and that do not terminate before January 1, 2003. See also

Firm Power.
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Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-7

Long-Term Firm Sales for Resale: Electricity sales for resale agreements that cannot unilaterally be

discontinued between now and January 1, 2003 and that do not terminate before January 1, 2003. See also

Firm Power.

Longitude: The angular distance on the earth east or west of the prime meridian, expressed in degrees or

in hours, minutes, and seconds.

Major Electric Utility: Utilities having, in each of three previous years, sales or transmission services

that exceed one of the following must submit the FERC Form 1: (1) One million megawatt hours of total

annual sales; (2) 100 megawatt hours of annual sales for resale; (3) 500 megawatt hours of annual power

exchanges delivered; or (4) 500 megawatt hours of annual wheeling for others (deliveries plus losses).

Makeup Water: “New water” intended to replace water lost to evaporation, blowdown, and drift in a

recirculating cooling water system. See New Water.

Mean Annual Flow: The average of daily flows over a calendar year.

Mean High Water Level: The average height of the high water over at least 19 years.

Mean Low Water Level: The average height of the low water over at least 19 years.

Mean Tidal Volume: An average of the volume of water entering and leaving an estuary or tidal river as

the water level fluctuates because of the tides.

Mean Water Level: A plane midway between mean high water and mean low water.

Migratory Routes: Route taken by aquatic populations during seasonal movement from one region to

another.

Monthly Average Flows: An average flow calculated by summing all of the actual or calculate daily

flows during a particular month and dividing that sum by the total number of calendar days in the month.

Natural Draft Cooling Tower: A cooling water tower that has no mechanical device to create airflow

through the tower. Usually applied in very small or very large applications.

National Geodetic Vertical Datum (NGVD): Commonly referred to as mean sea level. Established by

the National Geodetic Survey, NGVD are the permanent landmarks of known position and elevation

throughout the United States from which elevations can be surveyed. The location of the nearest

benchmark can be obtained by contacting either the local or national U.S.G.S. office.

Near-Field: Area of the intake water body where velocity and/or salinity/density become affected by the

removal of water.
G-8 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Net Electricity Generation: Gross electricity generation minus plant use from all electric utility owned

plants. The energy required for pumping at a pumped-storage plant is regarded as plant use and must be

deducted from the gross generation.

Net Peak Demand: The maximum load during a specified period of time, net of plant use.

New Water: Water that the plant directly withdraws from a water source through an intake structure or

water received from another entity. New water does not include water that is recirculated or recycled

within the plant.

Non-contact Cooling Water: Cooling water that does not come into contact with any raw materials,

intermediate products, finished products, by-products, or waste products.

Non-recirculating Canals/Channels, Lakes, or Ponds: Cooling structures used in conjunction with a

once through cooling water system that treats, all or a portion of the cooling water discharge from a plant.

Non-recirculating Cooling Towers: Cooling towers used in conjunction with a once through cooling

water system that treats, all or a portion of the cooling water discharge from a plant.

Non-tidal Rivers/Streams: Rivers or streams which do not receive significant inflows of water from

oceans or bays due to tidal action.

Nonutility Power Producer: A corporation, person, agency, authority, or other legal entity or

instrumentality that owns electric generating capacity and is not an electric utility. Nonutility power

producers include FERC Qualifying Cogenerators, FERC Qualifying Small Power Producers, and Other

Nonutility Generators (including Independent Power Producers) without a designated franchised service

area and which do not file forms listed in the Code of Federal Regulations, Title 18, Part 141.

North American Industrial Classification System: A new system initiated in January 1997 to classify

industries. This new system replaces the existing Standard Industrial Code (SIC) system and identifies

industries according to the type of production activities performed. NAICS industries are identified using

a 6-digit code. 

NPDES (National Pollutant Discharge Elimination System) Permit: A permit required to be held under

Section 402 of the Clean Water Act (33 U.S.C. 1342 et seq.) by any point source discharging pollutants

to waters of the United States. Permits may address effluent discharges, storm water, or sewage sludge

management practices and may be issued by an EPA Region or a Federally-approved State NPDES

program. 

Ocean: Marine open coastal waters other than those water bodies classified as estuaries, embayments or

fjords, each of which are semi-enclosed and have readily identifiable geographic boundaries. 

Once-through Cooling Water System: A system designed to withdraw water from a natural or other

water source, run it through a plant for contact and/or non-contact cooling purposes, and then discharge
Glossary to Questionnaire

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-9

it to a water body without recirculation. Once-through cooling water systems may use canals/channels,

ponds, or non-recirculating towers to dissipate waste heat from the water before it is discharged. 

Open Area: The wetted area (in square feet) of the opening to the cooling water intake structure minus

the area (in square feet) of any structural members associated with technologies located at the intake

opening.

Operating Hours: The total number of hours the cooling water intake structure was operating (taking in

water) excluding any hours when the cooling water intake structure was down for routine maintenance or

not operational for other reasons. 

Outage: The period during which a generating unit, transmission line, or other facility is out of service.

Passive Intake System: Devices placed at or near the opening of an intake structure that, with little or no

mechanical activity, stops debris and/or organisms from entering a plant’s water system. Most passive

intake systems achieve very low withdrawal velocities at the screening medium.

Planned or Under Construction: Cooling water intake structures for which funds have been authorized

and are expected to go into commercial service within the next 7 years. It does not include structures that

are presently operational, temporarily offline, permanently offline, or operating under test conditions.

Plant: A facility at which are located prime movers, electric generators, and auxiliary equipment for

converting mechanical, chemical, and/or nuclear energy into electric energy. A plant may contain more

than one type of prime mover. Electric utility plants exclude facilities that satisfy the definition of a

qualifying facility under the Public Utility Regulatory Policies Act of 1978.

Plant’s Own Groundwater Supply: A plant is considered as having its own groundwater supply when

it owns and operates its own onsite well or directly withdraws water from other groundwater sources. The

plant may treat the water, depending on its intended uses. Moreover, the plant may sell the water to other

parties and/or use it onsite. The plant, however, would not provide potable water to residential populations

like a local water supplier.

Plant’s Own Surface Water Supply: Water from ponds and reservoirs contained within the plant’s

boundary.

Point Source: Any discernible, confined, and discrete conveyance, including but not limited to, any pipe,

ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding

operation, landfill leachate collection system, vessel or other floating craft from which pollutants are or

may be discharged. The term does not include return flows from irrigated agriculture or agricultural storm

water run off. See also 40 CFR 122.2.

Pond, Natural: A still body of water that is generally smaller than a lake.

Power: The rate at which energy is transferred. Electrical energy is usually measured in watts.
G-10 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Power Exchanges: Transactions involving a balancing of debits and credits for energy, capacity, etc.

Power Purchases: Electric energy bought from a utility or non-utility power provider.

Prime Mover: The engine, turbine, water wheel, or similar machine that drives an electric generator. It

can also be a device that directly converts energy to electricity such as a photovoltaic solar cell or a fuel

cell.

Privately-Owned Treatment Works: A treatment works that is not publicly owned and whose owner

is not the operator of the works. The term includes any device and system used to handle and/or treat

liquid wastes.

Process Operations: Industrial activities that directly result in the production of a plant’s primary output.

Protected Aquatic Sanctuaries: Aquatic areas formally established by federal or state governments to

protect and conserve aquatic natural resources and habitat.

Public Electric Utility: Nonprofit, governmental-chartered entity established to generate, transmit, and/or

distribute electricity to wholesale or retail customers.

Publicly-Owned Treatment Works: A treatment works owned by the State or municipality. The term

refers to any devices and systems used to store, treat, recycle, and reclaim municipal sewage or industrial

wastes of a liquid nature. It also refers to sewers, pipes, and other conveyances only if they convey

wastewater to a POTW treatment plant.

Rate of Return on Capital: The profits realized by a utility as a percentage of capital outlays made by

that utility. Under utility regulation, the rate of return is subject to approval by the regulatory jurisdiction(s)

under which the utility operates.

Recirculating Cooling Water System: A system designed to withdraw water from a natural or other

water source to support contact and non-contact cooling uses within a plant. The water is generally sent

to a cooling canal/channel, lake, pond, or tower in order for waste heat to be dissipated. (Some facilities

may divert the “waste heat” to other process operations.) Once accomplished, the water is returned to the

system. New source water (called make-up water) is added to the system to replenish losses due to

blowdown, drift, and evaporation. For the purposes of the questionnaire, the term does not include nonrecirculating cooling canals/channels, ponds, or towers.

Reefs: An aggregation of rocks or corals at or near the surface of water.

Reservoir: A natural or constructed basin where water is collected and stored and from where it is piped

for various uses. 
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Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-11

Revenues: The total amount of money received by a firm from sales of its products and/or services, gains

from the sales or exchange of assets, interest and dividends earned on investments, and other increases in

the owner’s equity except those arising from capital adjustments.

Rural Electric Cooperative: An electric utility legally established to be owned by and operated for the

benefit of those using its service. The utility company will generate, transmit, and/or distribute supplies

of electric energy to a specified area not being serviced by another utility. Such ventures are generally

exempt from Federal income tax laws. Most electric cooperatives have been initially financed by the Rural

Utilities Service, U.S. Department of Agriculture.

Rural Utilities Service (RUS): Formerly the Rural Electrification Administration, the Rural Utilities

Service in the Department of Agriculture was established in 1936 with the purpose of extending credit to

cooperatives to provide electric service to small rural communities and farms.

RUS Form 12: The annual report of rural electric cooperatives administered by the Rural Utilities Service

(RUS). Rural electric cooperatives that generate electricity and that have borrowed money from the RUS

are required to file the RUS Form 12.

Sales for Resale: Energy supplied to other electric utilities, cooperatives, municipalities, and Federal and

State electric agencies for resale to ultimate consumers.

Securities Rating Agency: An agency rating securities such as bonds, stocks, commercial papers and

other obligations. Examples of securities rating agencies include, but are not limited to, Moody’s, Standard

& Poor, and Duff & Phelps.

Shoreline Intake Structure: An intake structure where the opening is closely aligned with the shoreline.

Skimmer/Curtain/or Baffle Wall: A vertical wall at the entrance to a screen or intake structure extending

from above to some point below the water surface. Skimmer/curtain/or baffle walls function to direct

colder waters from below the surface into the cooling water intake structure. See Figure 3 for example of

skimmer wall.

Standard Industrial Classification (SIC) Code: A national classification system that organizes business

entities into production-based and market-based categories identified by a 4-digit code. There are three

levels of SIC codes: primary, secondary, and tertiary. Primary SIC codes are assigned based on the

principal product or group of products produced or distributed by an establishment or for services rendered

by the plant. Additional SIC codes are assigned for any secondary and tertiary products produced or for

services rendered by an establishment. 

Standby: Operating status of a plant or generating unit that is generally running under no-load but that

is available to replace or supplement a plant or unit normally in service.

Steam-Electric Generating Unit: A generating unit in which the prime mover is a steam turbine. The

turbines convert thermal energy (steam or hot water) produced by generators or boilers to mechanical
G-12 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Figure 3. Cross Section Example of a Submerged Intake Structure Flush With Shoreline

Plan View Cross Section

Figure 4. Example of a Submerged Offshore Intake Structure

energy or shaft torque. This mechanical energy is used to power electric generators, which convert the

mechanical energy to electricity, including combined cycle electric generating units.

Submerged Intake Structure Flush with the Shoreline: An intake structure where the opening is evenly

aligned with the shoreline and that always draws water from substantially below the surface of the water

body. See Figure 3 for a graphical view of a submerged intake structure flush with the shoreline.

Submerged Offshore Intake Structure: An intake structure which extends from a plant outward into

a water body. The intake opening is submerged and the water is always withdrawn from below the surface

of the water body. See Figure 4 for a graphical view of a submerged offshore intake structure.

Submerged Vegetation: Vascular plants that are of significant ecological value because they provide

prime habitat for aquatic species, and that live and grow completely under the surface, except that some

species have flowers that may appear temporarily above the water.

Surface Intake Structure Flush with the Shoreline: An intake structure flush with the shoreline which

withdraws water from or near the surface of the water body. See Figure 5 for a graphical view of a surface intake

structure flush with the shoreline.
Glossary to Questionnaire

Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities G-13

Plan View Cross Section

Figure 5. Example of a Surface Intake Structure Flush with Shoreline

Surface Water: Bodies of water including lakes, ponds, or reservoirs; non-tidal rivers or streams; tidal

rivers; estuaries; fjords; oceans; and bays/coves.

Temporarily Offline: Cooling water systems that are presently out of commercial service but are

expected to return. The category includes systems on inactive reserve and systems deactivated (i.e.,

systems not normally used but available for service).

Tidal Rivers: Rivers which receive regular, significant inflows of water from oceans or bays due to tidal

action.[NOTE: For the purposes of this questionnaire, the term “tidal river” means the seaward most reach of a river/stream where the

salinity is < 0.5 ppt at a time of annual low flow its surface elevation responds to the effects of coastal lunar tides. Where the river salinity

exceeds 0.5 ppt, the respective river reach will be viewed as estuarine.]

Total Capital Costs: The total sum of all construction costs; design, engineering, and architectural costs;

equipment costs; construction material costs; instrumentation costs; installation labor costs; and allowances

for funds used during construction (AFUDC).

Trash Rack: See Bar Rack.

Traveling or Other Intake Screen System: Devices placed at or near the opening of an intake structure

to mechanically stop smaller debris and/or organisms from entering a plant’s water system.

Typical Calendar Year: A year in which the facility and its cooling water intake structures are operated

in a normal, routine, regular, or otherwise standard fashion.

Water Body: Any number of potential sources of intake water for cooling water intake structures.

Includes municipal water sources, ground well water, oceans, lakes, reservoirs, rivers, and estuaries.

Water Supply of Plant Other Than Own: Water obtained or purchased from a plant other than itself.

This other plant would own and operate its own onsite well or directly withdraw water from surface water

or other sources of groundwater. Depending upon the intended uses of the withdrawn water, the other

plant might provide treatment. Moreover, the other plant might sell the water to other entities or use it

onsite. The other plant, however, would not provide potable water to residential populations like a local

water supplier.
G-14 Detailed Industry Questionnaire: Phase II Cooling Water Intake Structures—Traditional Steam Electric Utilities

Waters of the United States (U.S.): All waters which are currently used, were used in the past, or may

be susceptible to use in interstate or foreign commerce, including all waters subject to the ebb and flow

of the tide. Waters of the United States include, but are not limited to, all interstate waters and intrastate

lakes, rivers, streams (including intermittent streams), mudflats, wetlands, sloughs, prairie potholes, wet

meadows, playa lakes, or natural ponds. The definition includes waters which are or could be used by

interstate or foreign travelers for recreation or other purposes and those waters from which fish or shellfish

are or could be taken and sold in interstate or foreign commerce or which are used or could be used for

industrial purposes by industries in interstate commerce. Waste treatment systems, including treatment

ponds or lagoons designed to meet the requirements of the CWA are not waters of the U.S. See 40 CFR 122.2

for a more complete definition.

Water Used for Process Activities: Water that will come in contact with or result from the production

or use of any raw material, intermediate product, finished product, waste product, or wastewater. This

includes water used in processes whose discharge is regulated by effluent limitations and new source

performance standards and stormwater runoff which comes in contact with industrial materials or

processes.

For facilities covered under the Steam Electric Point Source Category (40 CFR Part 423), this would

include water used for boiler makeup or freshwater, ash handling systems, metal cleaning systems, screen

backwash, laboratory activities, wastewater treatment (filter backwash, demineralizer waters, etc.), and

service water not otherwise designated.

Weir (or Skimmer or Curtain) Wall: A device placed before an intake structure to prevent warmer

surface water and floating debris from entering the intake structure.

Wetlands: Areas that are inundated or saturated by surface or ground water at a frequency and duration

sufficient to support, and under normal circumstances do support, a prevalence of vegetation typically

adapted for life in saturated soil conditions.

Zero Discharge Plant: A plant that does not return any treated or untreated plant effluent (excluding

stormwater) to surface water, a POTW, a privately-owned treatment works, or a groundwater injection

well. An example of a zero-discharge plant might be an entity that discharges its total effluent to an

evaporative pond or that completely recycles its wastewater.
FORM 

APPROVED 

 OMB

CONTROL 

N

O. 2040 - 0213

 EXPIRATION 

DATE: 12/31/02

Industry Short Technical

Questionnaire:

Phase II Cooling Water Intake Structures

January 2000

U.S. Environmental Protection Agency (EPA)

Office of Wastewater Management

Washington, DC

Notice of Estimated Burden

EPA estimates that completion of the entire Industry Short Technical Questionnaire: Phase II

Cooling Water Intake Structures will require an average of 10 hours per plant. This estimate

includes time for reading the instructions and reviewing the information necessary to respond to the

questionnaire form. Any comments regarding EPA’s need for the information, the accuracy of the

provided burden estimate, and suggested methods for reducing respondent burden (including the use

of automated collection techniques) should be addressed to: Director, Regulatory Information

Division, Office of Policy, Mail Code 2137, U.S. EPA, 401 M Street, SW, Washington, DC 20460.

Please include the OMB Control Number, listed in the left-hand margin on this page, with any

correspondence.

Certification Statement

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Certification Statement

Instructions

The individual responsible for directing or supervising the preparation of the enclosed Industry Short

Technical Questionnaire: Phase II Cooling Water Intake Structures must read and sign the Certification

Statement below before returning both documents to the U.S. Environmental Protection Agency. The

certifying official must be a responsible corporate official or his (or her) duly authorized representative.

The Certification Statement must be completed and submitted in accordance with the requirements

contained in the Code of Federal Regulations at 40 CFR 122.22.

I certify under penalty of law that the attached questionnaire was prepared under my

direction or supervision in accordance with a system designed to ensure that qualified

personnel properly gathered and evaluated the information submitted. The

information submitted is, to the best of my knowledge and belief, accurate and

complete. In those cases where we did not possess the requested information, we have

provided best engineering estimates or judgments. We have, to the best of our ability,

indicated what we believe to be company confidential business information as defined

under 40 CFR Part 2, Subpart B. We understand that we may be required at a later

time to justify our claim in detail with respect to each item claimed confidential. I am

aware that there are significant penalties for submitting false information, including

the possibility of fines and imprisonment as explained in Section 308 of the Clean

Water Act (33 U.S.C., Section 1318).

Signature of Certifying Official Date

( )

Printed Name of Certifying Official Telephone No.

Title of Certifying Official
Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

THIS PAGE INTENTIONALLY LEFT BLANK
Table of Contents

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures i

Table of Contents

Certification Statement

General Information and Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Why This Questionnaire? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii

Authority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Where to Get Help? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Certification Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

When and How to Return the Questionnaire? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Confidential Business Information ........................................................v

Specific Instructions for Completing the Questionnaire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi

Section 1: General Plant Information ....................................................... 1

Section 2: General Scoping Data .......................................................... 3

Section 3: Design and Operational Data for Cooling Water Intake Structures

and Cooling Water Systems ..................................................... 5
ii Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

THIS PAGE INTENTIONALLY LEFT BLANK
General Information and Instructions

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures iii

General Information and Instructions

Why This Questionnaire?

The U.S. Environmental Protection Agency (EPA) is currently developing regulations under Section 316(b)

of the Clean Water Act, 33 U.S.C., Section 1326(b). Section 316(b) provides that any standard established

pursuant to Sections 301 or 306 of the Clean Water Act (CWA) and applicable to a point source require

that the location, design, construction, and capacity of cooling water intake structures reflect the best

technology available (BTA) for minimizing adverse environmental impact. Answers to the enclosed short

technical questionnaire will help EPA identify the types and sizes of utilities that are subject to Section

316(b).

Please note that data from this short technical questionnaire are not intended to identify whether a specific

plant’s cooling water intake structures are having an adverse impact on the environment. Moreover,

questionnaire responses are not intended to identify whether a specific plant is employing BTA with

respect to minimizing adverse environmental impacts from cooling water intake structures, though they

may help EPA determine BTA options for various classes of plants. The questionnaires are simply tools

for characterizing some of the following: type and nature of plants using cooling water, specific uses of

cooling water, design and configuration of cooling water systems and cooling water intake structures, types

of technologies being used at intake structures, and whether plants have previously evaluated the

environmental impacts of their cooling water intake structures. Data from the questionnaires will be

factored into ongoing research being conducted by EPA that is more specifically designed to determine

the nature of adverse impacts and the types of control technologies that might minimize such impacts. All

of EPA’s research efforts will feed the development of regulatory options, some of which will subsequently

be fashioned into a proposed rulemaking that will be put forth for public review and comment.

Please note that it is not the intent of EPA to require facility personnel to go to unusual lengths to retrieve

information to respond to this questionnaire. Responses should be based on data that can be accessed from

plant records with reasonable diligence.

The enclosed short technical questionnaire consists of three main sections. Section 1 requests general plant

information, such as plant name, location, and Standard Industrial Classification (SIC) codes. Section 2

requests information from plants on such topics as National Pollutant Discharge Elimination System

(NPDES) permit status, whether cooling water is used and, if so, whether it is withdrawn by the plant from

surface water. Finally, information is requested on the types of activities for which the plant uses cooling

water directly withdrawn from surface water. The purpose of these two sections is to help EPA determine

the nature of plants within an industry group that use cooling water. Additionally, the information will

help EPA identify (i.e., “screen”) plants that are not subject to Section 316(b). These out-of-scope plants

will be exempted from completing the remaining sections of the questionnaire. Plants that will be

considered “out-of-scope” will include those that (1) are not point sources as defined under Section

502(14) of the Clean Water Act (33 U.S.C., 1362(14)), (2) do not use cooling water as that term is defined

for the purposes of this questionnaire, or (3) do not receive any of their cooling water supply from a surface

water source.
General Information and Instructions

iv Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

 Toll-Free Help Line

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Science Applications International Corporation (SAIC)

Available weekdays, 9:00 a.m. to 5:00 p.m., Eastern Time

Toll-Free Phone No.: 1-800-246-3113

Direct Dial Phone No.: 703-318-4676 (long distance charges will apply)

Section 3 requests plants to provide basic design and operational data on their cooling water intake

structures and cooling water systems. Many of the questions are in multiple-choice format. The following

types of information are being requested: total number of cooling water intake structures, originating

sources of cooling water, total cooling water intake flow rates and operating days for a typical calendar

year, total number of cooling water systems and their respective configurations, placement of cooling water

intake structures in surface water bodies, control technologies being used at intake structures, and whether

plant or firm owners have ever conducted or commissioned environmental or ecological studies of the

potential impacts of any of their cooling water intake structures.

Authority

EPA has authority to administer this questionnaire under Section 308 of the CWA (33 U.S.C., Section

1318). Late filing of the questionnaire, or failure to follow any related EPA instructions, may result in civil

penalties, criminal fines, or other sanctions provided by law.

Where to Get Help?

Certification Statement

A responsible corporate official or his (or her) duly authorized representative must verify the accuracy of

the plant’s responses to the questionnaire by reading and signing the enclosed Certification Statement.

This statement must be returned to EPA along with the completed questionnaire.

When and How to Return the Questionnaire?

You must complete and return the short technical questionnaire and Certification Statement to EPA within

45 calendar days after receiving the materials at your plant or firm. Please return your materials, in the

enclosed self-addressed envelope, to:
General Information and Instructions

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures v

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

316 (b) Survey

U.S. Environmental Protection Agency 

c/o SAIC (R-1-3)

11251 Roger Bacon Drive

Reston, VA 20190-5201

NOTE: Please keep a copy of the completed questionnaire and Certification Statement for your records.

If you have extenuating circumstances that preclude you from meeting the 45 day deadline, please contact

Deborah Nagle at the following email address: Survey.316b@epamail.epa.gov to discuss your situation.

Confidential Business Information

You may assert a business confidentiality claim for some or all of your responses to the short technical

questionnaire, as described in 40 CFR 2.203(b) (see full text below). Complete regulations governing

confidentiality of business information (CBI) appear in 40 CFR, Part 2, Subpart B.

40 CFR 2.203(b) Method and time of asserting business confidentiality claim. A business which is submitting

information to EPA may assert a business confidentiality claim covering the information by placing on (or attaching

to) the information, at the time it is submitted to EPA, a cover sheet, stamped or typed legend, or other suitable form

of notice employing language such as ‘trade secret,’ ‘proprietary,’ or ‘company confidential.’ Allegedly confidential

portions of otherwise nonconfidential documents should be clearly identified by the business, and may be submitted

separately to facilitate identification and handling by EPA. If the business desires confidential treatment only until

a certain date or until the occurrence of a certain event, the notice should so state.

You may claim confidentiality of business information for any of your responses by one of the methods

described above. If no claim of confidentiality has been made, EPA may make the data available to the

public without further notice. Please note that you may be required to justify any claim of confidentiality

at a later time. Note, however, that certain types of information cannot be considered confidential under

the CWA (e.g., plant location, water body, water body type, intake flow data).

If EPA reveals information covered by a claim of confidentiality, the Agency will strictly follow the

requirements and procedures set forth in 40 CFR Part 2, Subpart B. Overall, EPA may reveal submitted

information protected by a CBI claim only to other employees, officers, or authorized representatives of

the United States who are responsible for implementation of the Clean Water Act. EPA has extensive

standard operating procedures in place to handle, store, and transmit CBI data and has a long history of

successfully managing this type of information. In addition, personnel expected to handle CBI data are

required by the Agency to be trained and certified.

Agency contractors will have access to CBI data so that work can be performed under their contracts

relative to the Section 316(b) rulemaking. All EPA contracts require that contractor employees must use

CBI data only to perform work specified by EPA. The information is not to be shown to anyone, other

than EPA officials, without prior written approval having been received from the affected business or from

EPA’s legal office.
General Information and Instructions

vi Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Specific Instructions for Completing the Questionnaire

Plant or firm personnel most knowledgeable of the subject areas covered by the

questions posed should complete the questionnaire:

• Please answer the questions in sequence unless you are directed to SKIP

forward in the questionnaire. This is important since many questions are only

applicable to some respondents.

• Clearly mark responses to all questions with a black or blue ink pen, or type

responses in the spaces provided.

• For each question, please read all instructions and definitions carefully.

• Most key terms are defined at the point where they first appear in the questionnaire.

They are also defined in the Glossary, which is attached to the back of the

questionnaire. Before responding to a given question, please read the

definitions of any key terms used and any question-specific instructions.

• Please use the units specified when responding to questions requesting

measurement data (e.g., gallons per day).

• Please provide responses on the basis of the time period(s) cited in each

question. Note that the time periods under which information is requested varies

from question to question.

• Please indicate whether information provided in any of your responses is

confidential. Such information will be protected under EPA’s confidentiality

procedures. To claim a particular response as containing confidential business

information, follow the identification procedures described on the previous page

and found under 40 CFR 2.203(b).
Section

General Plant Information 1

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 1

Yes (1) SKIP TO Q.2

No (2)

Section 1: General Plant Information

1. (a) Does the above mailing label reflect the plant’s full legal

name and address?

(b) Please provide the complete legal name and mailing address

for the plant:

Name of Plant: (1)

Street Address: (2)

P.O. Box (if applicable): (3)

City, State ZIP: (4)

Telephone Number: ( ) (5)

DUNS Number: __ __ – __ __ __ – __ __ __ __ (6)

[ Check () here if none.] 
Section

1 General Plant Information

2 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

2. Please identify the person responsible for questionnaire

responses, and please provide the appropriate title and contact

information:

NOTE: The plant contact person provided here should be the person most

knowledgeable about the information provided in this survey. This person is

not required to be the certifying official.

Name: (1)

Title: (2)

Employer (full legal name): (3)

Relationship to Plant (e.g., domestic parent

firm, contractor, etc.): (4)

Telephone No: ( )________________ (5a) Fax No: ( ) (5b)

Best Time to Contact: (6)

3. Is the plant presently in commercial service?

NOTE: To clarify for plants who are not in a commercial business, interpret

this question as “Is your plant currently operating?”

4. What are the four-digit Standard Industrial Classification (SIC)

codes associated with the plant’s main lines of business? [Please

use the SIC codes contained in the Office of Management and Budget’s 1987

Standard Industrial Classification Manual. This listing can also be found at the

following Internet site: www.osha.gov/cgi-bin/sic/sicser5.]

NOTE: Since the 1930s, SIC codes have been used to facilitate the

collection, tabulation, presentation, and analysis of data relating to U.S.

business establishments by Federal statistical agencies (e.g., Office of

Management and Budget or OMB, Bureau of the Census, etc.). The system

was last updated by OMB in 1987. It was recently replaced by the North

American Industry Classification System (NAICS) in 1997; however, it

continues to be used by many Federal agencies. EPA believes it would be

unnecessarily confusing to ask plants to classify themselves using NAICS

codes for the purposes of this questionnaire.

Primary __ __ __ __ (1)

Secondary __ __ __ __ (2)

Other __ __ __ __(3a) __ __ __ __(3b) __ __ __ __(3c)
Section

General Scoping Data 2

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 3

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

DEFINITION For the purposes of this questionnaire, the term “cooling

water” refers to both contact and noncontact cooling

water, including water used for air conditioning, equipment cooling,

evaporative cooling tower makeup, and dilution of effluent heat content.

The intended use of the cooling water is to absorb waste heat rejected from

the process or processes employed or from auxiliary operations on the

plant’s premises.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

DEFINITIONS Statement. For the purposes of this questionnaire, surface water

includes lakes, ponds, or reservoirs; nontidal rivers or

streams; tidal rivers; estuaries; fjords; oceans; and bays/coves. A cooling

water intake structure is the total structure and associated technologies

used to direct water from a water body into a plant up to the point of the first

intake pump or series of pumps. The intended use of the cooling water is

to absorb waste heat rejected from processes employed or from auxiliary

operations on the plant’s premises. Single cooling water intake structures

might have multiple intake bays. If a plant has an intake structure that

withdraws water for other purposes in addition to cooling, the entire intake

structure should be considered a cooling water intake structure for the

purposes of this questionnaire.

Section 2: General Scoping Data

5. Does the plant presently have or is the plant presently in the

process of obtaining a National Pollutant Discharge

Elimination System (NPDES) permit?

NOTE: NPDES permits are required to be held under Section 402 of the

Clean Water Act (33 U.S.C. 1342 et seq.) by any point source that

discharges pollutants directly to waters of the United States. Plants that

discharge 100 percent of their effluent (including storm water) to publiclyowned treatment works, privately-owned treatment works, and/or to ground

water injection wells should answer “No” to this question.

6. Since January 1, 1996, has cooling water been used for contact

or noncontact cooling purposes at the plant? [Please consider all

cooling water used regardless of the type of water source or provider from which

it has been obtained.]

7. Since January 1, 1996, has the plant directly obtained any

portion of its cooling water from a surface water source?

NOTE: In order for a plant to directly withdraw cooling water from surface

water, it must have an intake structure.
Section

2 General Scoping Data

4 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

8. In the matrix below, please indicate the activities for which your plant has used cooling water directly

withdrawn from surface water since January 1, 1996? [Please check () all applicable activities.]

Activities Requiring Cooling Water Directly Withdrawn by Plant From Surface Water

Since January 1, 1996

Item

No. Activities

8(a) Electricity Generation (including equipment cooling) ................................................ (1)

[ Check () here if any of plant’s generating units that use cooling water are part of a combined cycle unit.]

Definition: For the purposes of this questionnaire, a combined cycle unit is an electric generating unit that has one

or more gas turbines or internal combustion engines and one or more steam boilers. Part of the required input to the

boiler(s) is provided by the exhaust gas (waste heat) of the combustion turbines(s).

8(b) Air Conditioning (Cooling and Heating of Indoor Air) .............................................. (2)

Definition: For the purposes of this questionnaire, air conditioning refers to the process and equipment used to

control the temperature and humidity of indoor air. Cooling water is used in some types of air conditioning systems.

8(c) Production Line (or Process) Contact or Noncontact Cooling ....................................... (3)

(for uses other than electricity generation and excluding air conditioning)

Definition: For the purposes of this questionnaire, the term production line refers to each of the successive steps

taken at a plant to produce a product, except the production line’s use of electricity.

8(d) Other (please describe below): .................................................................. (4)
Section

Design and Operational Data 3

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 5

 ___________

Section 3: Design and Operational Data for Cooling Water Intake Structures

and Cooling Water Systems

9. How many intake structures does the plant have that directly withdraw surface water to support, at

least in part, contact or noncontact cooling operations within the plant? [Consider only those intake structures

presently operating or temporarily offline (i.e., expected to operate again in the future). Do not include intake structures planned

or under construction or permanently offline.] ..................................... 

10. For each intake structure reported under Q.9, please indicate in the matrix below all surface water

sources from which the plant has directly withdrawn contact or noncontact cooling water since January

1, 1996 (or from the date the intake structure became operational if that date was later than January

1, 1996). [Please check () all water sources that apply per intake structure. If cooling water has been withdrawn from an

intake canal/channel or constructed intake embayment/bay/cove, please indicate the originating source(s) of the water.]

Matrix 10 Matrix ___ of ___

Originating Surface Water Sources of Cooling Water Since January 1, 1996

by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your plant has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Water

Source

Code

Originating Surface Water Source

[Please check () all sources that apply per CWIS.]

Note: If cooling water has been withdrawn from

an intake canal/channel or constructed intake embayment/bay/cove,

please indicate the originating source of the water.

CWIS _______________

[Please indicate plant-designated

name or no. of CWIS.]

CWIS _______________

[Please indicate plant-designated

name or no. of CWIS.]

A Lake, Pond, or Reservoir

Definitions: For the purposes of this questionnaire, a

lake is an expanse of water, usually fresh, surrounded

by land or by land and a manmade retainer. Lakes may

be fed by rivers, streams, springs, and/or local

precipitation. A pond is a still body of water generally

smaller than a lake. A reservoir is an artificial body of

surface water retained by a dam.

NOTE: These terms are not to be confused with the terms

cooling lake or cooling pond. The primary purpose of these

water bodies is to absorb waste heat rejected from a plant’s

wastewater discharge.

(1) (1)

B Nontidal River or Stream

Definition: For the purposes of this questionnaire, a

river or stream is nontidal when no significant inflow of

water from an ocean or bay due to tidal action occurs.

(2) (2)

See next page for continuation of Matrix 10.
Section

3 Design and Operational Data

6 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Matrix 10 (Continued) Matrix ___ of ___

Originating Sources of Cooling Water Since January 1, 1996 by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your plant has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Water

Source

Code

Originating Water Source

[Please check () all sources that apply per CWIS.]

Note: If cooling water has been withdrawn from

an intake canal/channel or constructed intake embayment/bay/cove,

please indicate the originating source of the water.

CWIS _______________

[Please indicate plant-designated

name or no. of CWIS.]

CWIS _______________

[Please indicate plant-designated

name or no. of CWIS.]

C Tidal River

Definition: For the purposes of this questionnaire, a

tidal river is the portion of river above the river’s mouth

that receives a regular, significant inflow of water from

an ocean or bay due to tidal action.

(3) (3)

D Estuary

Definition: For the purposes of this questionnaire, an

estuary is a semi-enclosed coastal body of water that

has a free connection with the open sea and is strongly

affected by tidal action. In an estuary, sea water is

mixed (and usually measurably diluted) with fresh water

inflow from rivers.

NOTE: The Chesapeake Bay and the San Francisco Bay are

examples of estuaries even though the term bay appears in

their names.

(4) (4)

E Ocean

Definition: For the purposes of this questionnaire, an

ocean is defined as marine open coastal waters other

than those water bodies classified as estuaries,

embayments, or fjords, which are semi-enclosed and

have readily identifiable geographic boundaries.

(5) (5)

F Bay or Cove (natural, saline water)

Definition: For the purposes of this questionnaire, a

bay or cove is an inlet created when the shoreline of a

water body is indented. Bays are generally larger than

coves but are smaller than gulfs. Coves are generally

sheltered. [Do not mark this response if the bay or cove

is constructed; see column note above.]

(6) (6)

G Bay or Cove (natural, fresh water)

[See definition and instructions directly above.]

(7) (7)
Section

Design and Operational Data 3

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 7

DEFINITION For the purposes of this questionnaire, a typical calendar year is one in which the plant and its cooling

water intake structures are operated in a normal, routine, regular, or otherwise standard fashion. The

data provided should be similar to data from other recent calendar years of operation or from projected, near future years

of operation (i.e., 1999 to 2001).

11. Please complete the matrix below for each of the plant’s cooling water intake structures reported under

Q.9. In this matrix, EPA is requesting plants to provide, for a typical calendar year since January 1,

1996, the total number of days the structure was operational (Item a), its average daily intake flow rate

in million gallons per day (GPD) (Item b), the latitude and longitude of the structure (in degrees,

minutes, and seconds) (Items c and d), the surface water sources used (Item e), the design throughscreen velocity in feet per second (Item f), and the source water flow basis used for developing the

design through-screen velocity (Item g). [Please provide actual data to the extent they are readily available; otherwise,

best engineering estimates may be provided.]
Section

3 Design and Operational Data

8 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Total No. of Operating Days, Average Daily Intake Flow Rate, and Originating Water Matrix ___ of ___

Sources for a Typical Calendar Year Since January 1, 1996 by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your plant has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No.

Data Requested

[For each CWIS, please provide responses for the same typical

calendar year for each item in the matrix. Actual data should be

provided if available; otherwise, best engineering estimates may

be provided.]

CWIS _______________

[Please insert same no. or name as

under Matrix 10, page 5.]

CWIS _______________

[Please insert same no. or name

as under Matrix 10, page 5.]

11(a) No. of Operating Days for Each CWIS in

Typical Calendar Year (round to the nearest day)

Definition: For the purposes of this questionnaire, the

term operating days refers to the total number of days

(1 day = 24 hours) a cooling water intake structure was

operational during a calendar year, excluding any days

the intake structure was offline for routine maintenance

or otherwise was not operational. 

NOTE: Operating days should be determined by adding the

number of hours the CWIS was operational during the year and

then dividing by 24 hours per day to get the total number of

operating days. For example, if a plant has operated 5,840

hours during the calendar year, the total hours divided by 24

hours per day are equal to 243 calendar days.

____________________days ____________________days

11(b) Average Daily Intake Flow Rate (in GPD) for Each

CWIS in Typical Calendar Year ____________________GPD ____________________GPD

11(c) Latitude at Point of Intake Structure Openings (in

degrees, minutes, and seconds)

NOTE: For CWISs with intake bays, please provide latitude for

the central point of the intake bay openings.

_____ _____ ́ _____ _____ _____ ́ _____

11(d) Longitude at Point of Intake Structure openings (in

degrees, minutes, and seconds)

NOTE: For CWISs with intake bays, please provide longitude

for the central point of the intake bay openings.

_____ _____ ́ _____ _____ _____ ́ _____

See next page for continuation of Matrix 11.
Section

Design and Operational Data 3

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 9

DEFINITION For the purposes of this questionnaire, a cooling water system is a system that provides water to/from

a plant to transfer heat from equipment or processes therein. The system includes, but is not limited

to, water intake and outlet structures, cooling towers, ponds, pumps, pipes, and canals/channels. For plants that use

surface water for cooling, the system begins at the first barrier to ingress and/or egress by fish and other aquatic wildlife

(e.g., at the trash rack, etc.) and ends at the discharge outlet(s).

Total No. of Operating Days, Average Daily Intake Flow Rate, and Originating Water Matrix ___ of ___

Sources for a Typical Calendar Year Since January 1, 1996 by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your plant has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No.

Data Requested

[For each CWIS, please provide responses for the same typical

calendar year for each item in the matrix. Actual data should be

provided if available; otherwise, best engineering estimates may

be provided.]

CWIS _______________

[Please insert same no. or name as

under Matrix 10, page 5]

CWIS _______________

[Please insert same no. or name

as under Matrix 10, page 5]

11(e) Source Water Flow Basis for Design Through-Screen

Velocity Critical Low Flow . . . . . (1)

Mean Flow ......... (2)

Don’t Know . . . . . . . . . (8)

Critical Low Flow . . . . . (1)

Mean Flow ......... (2)

Don’t Know . . . . . . . . . (8)

11(f) Name of Originating Surface Water Source(s) from

Which Each CWIS Withdrew Cooling Water in Typical

Calendar Year 

11(g) Design Through-Screen Velocity (in fps). 

NOTE: For CWISs that do not employ a screen technology

only, please provide a design through-technology velocity at

the technology where impingement or entrainment of aquatic

organisms is most likely to occur. For example, at a

submerged intake structure that employs a velocity cap,

provide the velocity going through the velocity cap.

____________________fps ____________________fps

12. (a) In the space provided below, please indicate the total number of cooling water systems that are

presently operating or temporarily offline (expected to operate again in the future) at the plant.

Do not consider cooling water systems that are planned or under construction or permanently

offline.

NOTE: Please consider your plant as having only one cooling water system unless your plant has systems that are

physically separated (e.g., have separate water intake and outlet structures) and can be operated independently.

If the plant has several intake structures, but only one outlet structure, or vice-versa, please consider the plant as

having only one cooling water system. An intake structure with multiple bays counts as one intake structure.

Total Number of Cooling Water Systems ............................ 
Section

3 Design and Operational Data

10 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

(b) Please provide the general profile data requested in the matrix below for each of the plant’s

cooling water systems. [Please check () all applicable design configuration types per system.]

Profile of Plant’s Cooling Water Systems (CWSs) Matrix ___ of ___

Response space has been provided for two CWSs. If your plant has more than this number of systems, please copy the matrix and change the CWS

code numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets as Matrix “1

of 3,” “2 of 3,” etc.

Data Requested CWS #1 CWS #2

Configuration of CWS [Please check () all

applicable configuration types per system.]

NOTE: Refer to the Glossary for definitions

of the design configurations and system

components listed.

Once-Through CWSs

Once-Through Only ............ (1)

Once-Through with Nonrecirculating

Cooling Canals/Channels, Lakes

or Ponds ..................... (2)

Once-Through with Nonrecirculating

Cooling Towers . . . . . . . . . . . . . . . (3)

Once-Through CWSs

Once-Through Only ............ (1)

Once-Through with Nonrecirculating

Cooling Canals/Channels, Lakes

or Ponds ..................... (2)

Once-Through with Nonrecirculating

Cooling Towers . . . . . . . . . . . . . . . (3)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . . . (4)

Recirculating with Cooling Canals/

Channels, Lakes, or Ponds ...... (5)

Recirculating With Cooling Towers . (6)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . . . (4)

Recirculating with Cooling Canals/

Channels, Lakes, or Ponds ...... (5)

Recirculating With Cooling Towers . (6)

Other ....................... (7)

(please describe below):

Other ....................... (7)

(please describe below):
Section

Design and Operational Data 3

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 11

13. Which of the following terms best describe the configuration of your plant’s intake structures (as

reported under Q.9 above) that are being used to withdraw some portion of surface water for contact

or noncontact cooling purposes? [Please check () all design configurations that apply.]

NOTE: Schematics of the design configurations listed can be found in the Glossary accompanying the questionnaire.

Configuration of Plant’s Cooling Water Intake Structures

Item

No. Design Configurations

[Please check () all design configurations that apply.]

13(a) Intake Canal or Channel (natural or constructed) ..................................................... (1)

Definition: For the purposes of this questionnaire, an intake canal or channel is a channelized conduit that directs water

through screens or other filtering devices up to the intake pump or series of pumps.

13(b) Submerged Intake Structure Flush with Shoreline .................................................. (2)

Definition: For the purposes of this questionnaire, a submerged intake structure flush with the shoreline is an intake

structure whose opening is closely aligned with the shoreline and that always withdraws water from below the surface of

the water body.

13(c) Surface Intake Structure Flush with Shoreline ..................................................... (3)

Definition: For the purposes of this questionnaire, a surface intake structure flush with the shoreline is an intake

structure whose opening is evenly aligned with the shoreline and that generally withdraws water from the surface of a water

body.

13(d) Intake Embayment, Bay, or Cove (natural or constructed) ............................................. (4)

Definition: For the purposes of this questionnaire, an intake embayment, bay, or cove is a natural or constructed inlet

along the shoreline of a water body that serves to direct water through screens or other filtering devices up to the intake

pump or series of pumps.

13(e) Submerged Offshore Intake Structure ............................................................ (5)

Definition: For the purposes of this questionnaire, a submerged offshore intake structure is an intake structure that

extends from a plant outward into a water body. The intake opening is submerged, and the water withdrawn is always from

below the surface of the water body.

13(f) Other ....................................................................................... (6)

[Please briefly describe the configuration of any cooling water intake structure that does not fit the above categories and

explain why it is unique.]
Section

3 Design and Operational Data

12 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

14. What types of technologies are being used at the plant’s intake structures, as reported under Q.9, that

are intended to protect the plant’s cooling water systems and/or reduce environmental impacts posed

by the intake structures themselves? [Please check () all technology categories that apply.]

Technology Types Being Used at Plant’s Cooling Water Intake Structures

Item

No. Control Technology Types

[Please check () all technology categories that apply.]

14(a) Fish Diversion or Avoidance Systems ............................................................ (1)

Definition: For the purposes of this questionnaire, fish diversion or avoidance systems are mechanisms designed to

divert or induce fish to swim away from a water intake structure.

Examples: Louver Barrier Velocity Cap Fish Net Barrier Air Bubble Barrier Electrical Barrier Light Barrier 

Sound Barrier Cable & Chain Barrier Water Jet Barrier

14(b) Passive Intake Systems ........................................................................ (2)

Definition: For the purposes of this questionnaire, passive intake systems are devices placed at or near the opening of

an intake structure that, with little or no mechanical activity, stop debris and/or organisms from entering a plant’s water

system. Most passive intake systems achieve very low withdrawal velocities at the screening medium.

Examples: Wedge Wire Screen Perforated Pipe Perforated PlatePorous Dike Artificial Filter Bed Leaky

Dam

14(c) Fish Handling and/or Return Systems ............................................................ (3)

Definition: For the purposes of this questionnaire, a fish handling system includes any system that collects and/or

transports live organisms and debris away from an intake structure.

Examples: Fish Conveyance Systems (troughs or pipes) Fish Basket Fish Elevator (lift basket) Fish Bypass

System Fish Holding Tank

14(d) Intake Screen Systems ........................................................................ (4)

Definition: For the purposes of this questionnaire, intake screen systems are devices placed at or near the opening of

an intake structure to mechanically stop debris and/or organisms from entering a plant’s water system.

Examples: Revolving Drum Screen (Horizontal or Vertical) Rotating Disk Screen Fixed Screen Traveling

Screen

14(e) Other ....................................................................................... (5)

[Please denote any technology that does not fit one of the above technology categories and briefly describe why the

technology(ies) is/are unique.]

14(f) No Technologies ............................................................................. (6)
Section

Design and Operational Data 3

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures 13

Yes (1)

No (2)

15. (a) Has your plant or its firm owner ever conducted or

commissioned a study of the ecological or environmental

effects of any of the plant’s intake structures that have

withdrawn surface water for contact or noncontact cooling

purposes (i.e., those intake structures reported under Q.9)?

(b) Please provide the name of the most recent study completed.

In addition, please provide the name and telephone number

of the individual(s) we should contact if we require

additional information regarding the study.

Name of Most Recent Study:____________________ (1)

Contact Name: _______________________________ (2)

Telephone Number: ( ) _____________________ (3)

THANK YOU FOR COMPLETING EPA’S INDUSTRY SHORT TECHNICAL

QUESTIONNAIRE: PHASE II COOLING WATER INTAKE STRUCTURES.

WE APPRECIATE YOUR COOPERATION. PLEASE RETURN THE

QUESTIONNAIRE WITH A SIGNED CERTIFICATION STATEMENT

IN THE ENVELOPE PROVIDED.
Section

3 Design and Operational Data

14 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

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Glossary

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures G-1

Plan View

Glossary

NOTE: The following terms are defined for purposes of this questionnaire only. The definitions at present do not have any

legal meaning with respect to Section 316(b) of the Clean Water Act.

Air Conditioning: The process and equipment used to control the temperature and humidity of indoor

air. Cooling water is used in some types of air conditioning systems.

Average Daily Intake Flow Rate: The total volume of cooling water withdrawn by a specific intake

structure over a 24-hour day.

Bar Rack/Trash Rack: A device consisting of parallel spaced bars placed at or near the opening of an

intake structure to mechanically stop debris and /or large organisms from entering a facility’s water system.

Bay or Cove (natural or constructed): An inlet created when the shoreline of a water body is indented.

Bays are generally larger than coves but are smaller than gulfs. Coves are generally sheltered. Bays and

coves are considered part of the cooling water intake structure. [NOTE: The Chesapeake Bay and the San Francisco

Bay are examples of estuaries even though the term bay appears in their name.] See Figure 1 for a graphical view of an intake structure

incorporating a bay or cove.

Figure 1. Example of an Intake Structure Incorporating a Bay or Cove

Combined-Cycle Unit: An electric generating unit that consists of one or more gas turbines or internal

combustion engines and one or more steam boilers. Part of the required input to the boiler(s) is provided

by the exhaust gas (waste heat) of the combustion turbine(s).

Cooling Canal/Channel: An artificial, channelized waterway used to transfer heat added to water from

operations within a facility to the atmosphere.

Cooling Lake: A body of water that is formed by the construction of a dam, berm, or levee in a natural

watershed and which relies on the banks of the natural watershed to provide the majority of the
Glossary

G-2 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

containment of the impounded water. A cooling lake is a means for transferring to the atmosphere heat

added to water by facility operations.

Cooling Operations: Activities that transfer heat from one medium or activity to cooling water (with the

exception of nonprocess air conditioning).

Cooling Pond: A body of water that is formed by the construction of a dam, berm, or levee on land, has

no significant watershed, and which requires the manmade containment surround most or all of the

impounded water. A cooling pond is a means for transferring to the atmosphere heat added to water by

facility operations.

Cooling Tower: A structure which functions as a heat exchanger and is designed to provide cooling by

the forced evaporation of water into an air stream using either mechanical energy (forced draft) or ambient

buoyancy (natural draft) to provide the movement of the air stream through the tower. 

Cooling Water: Refers to both contact and non-contact cooling water, including water used for air

conditioning, equipment cooling, evaporative cooling tower makeup, and dilution of effluent heat content.

The intended use of the cooling water is to absorb waste heat rejected from the process or processes

employed or from auxiliary operations on the facility’s premises.

Cooling Water Intake Structure: The total structure used to withdraw water from a water source up to

the point of the first intake pump or series of pumps. The intended use of the cooling water is to adsorb

waste heat rejected from processes employed or from auxiliary operations on the facility’s premises.

Single cooling water intake structures may have multiple intake bays and could serve more than one

generating unit. If a facility has intake structures that withdraw water for purposes besides cooling, the

entire intake structure should be considered a cooling water intake structure under the questionnaire.

Cooling Water System: A system that provides water to/from a facility to transfer heat from equipment

or processes therein. The system includes, but is not limited to, water intake and outlet structures, cooling

towers, ponds, pumps, pipes, and canals/channels. For facilities that use surface water for cooling, a

system begins at the first barrier(s) to ingress and/or egress by fish and other aquatic wildlife (e.g., at the

weir wall, at the trash rack, etc.) and ends at the discharge outlet(s). See also Cooling Water Intake Structure.

Design Through-Screen Velocity: The value assigned during the design phase of a CWIS to the speed

at which intake water passes through the intake screen (or other technology) against which organisms may

be impinged or where they may be entrained.

Discharge: When used without qualification, means the discharge of a pollutant. Discharge of a pollutant

means: (i) any discharge of any pollutant or combination of pollutants to waters of the United States from

any point source, or (ii) any addition of any pollutant or combination of pollutants to the waters of the

contiguous zone or the ocean from any point source other than a vessel or other floating craft which is

being used as a means of transportation. See also 40 CFR 122.2.

DUNS Number: A number assigned to a business using the Data Universal Numbering System (DUNS)

developed by the Dun and Bradstreet Corporation.
Glossary

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures G-3

Plan View

Figure 2. Example of an Intake Structure Employing an Intake Canal

Effluent: Outflow of wastewater from a facility to waters of the United States.

Estuary: A semi-enclosed coastal body of water that has a free connection with the open sea and is

strongly affected by tidal action. In an estuary, sea water is mixed (and usually measurably diluted) with

fresh water from land drainage. [NOTE: The Chesapeake Bay and the San Francisco Bay are examples of estuaries even though

the term bay appears in their name. For the purposes of this questionnaire, the term “tidal river” means the seaward most reach of a

river/stream where the salinity is  0.5 ppt at a time of annual low flow its surface elevation responds to the effects of coastal lunar tides.

 Where the river salinity exceeds 0.5 ppt, the respective river reach will be viewed as estuarine.]

Fish Diversion or Avoidance System: Mechanisms designed to divert or induce fish to swim away from

cooling water intake structures. 

Fish Handling and/or Return System: Any system that collects, and/or transports live organisms from

an intake structure back to the source water body at a point away from the influence of the intake. 

Groundwater Injection Well: A man-made or improved “hole” in the ground that is deeper than its

widest surface dimension and is used to discharge or dispose of fluids to groundwater (the supply of water

found beneath the earth’s surface; it is usually held in aquifers and is often the source of water for streams,

springs, or wells from which it may be withdrawn). There are many types of injection wells, but they are

all similar in their basic function. The Federal Underground Injection Control Program has grouped

injection wells into five categories—Class I through V wells.

Intake Bays: Temporary holding areas designed to direct water toward the pump well of a specific intake

structure.

Intake Canal/Channel (natural or constructed): A channelized conduit that diverts water before its

passage through screens or other filtering devices and before its entrance into an intake structure. See

Figure 2 for a graphical view of an intake structure employing an intake canal.

Intake Embayment/Bay/Cove: A natural or constructed inlet along the shoreline of a water body that

serves to direct water through screens or other filtering devices up to the intake pump or series of pumps.

Intake Screen System: Devices placed at or near the opening of an intake structure to mechanically stop

debris and/or organisms from entering a facility’s water system.

Intake Structure: See Cooling Water Intake Structure.
Glossary

G-4 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Lake: A natural water body or an impounded stream, usually fresh, surrounded by land or by land and a

man-made retainer (e.g., a dam). Lakes may be fed by rivers, streams, springs, and/or local precipitation.

Makeup Water: “New water” intended to replace water lost to evaporation, blowdown, and drift in a

recirculating cooling water system. See New Water.

New Water: Water that the facility directly withdraws from a water source through an intake structure

or water received from another entity. New water does not include water that is recirculated or recycled

within the facility.

Non-tidal Rivers/Streams: Rivers or streams which do not receive significant inflows of water from

oceans or bays due to tidal action.

North American Industrial Classification System: A new system initiated in January 1997 to classify

industries. This new system replaces the existing Standard Industrial Code (SIC) system and identifies

industries according to the type of production activities performed. NAICS industries are identified using

a 6-digit code. 

NPDES (National Pollutant Discharge Elimination System) Permit: A permit required to be held under

Section 402 of the Clean Water Act (33 U.S.C. 1342 et seq.) by any point source discharging pollutants

to waters of the United States. Permits may address effluent discharges, storm water, or sewage sludge

management practices and may be issued by an EPA Region or a Federally-approved State NPDES

program. 

Ocean: Marine open coastal waters other than those water bodies classified as estuaries, embayments or

fjords, each of which are semi-enclosed and have readily identifiable geographic boundaries. 

Once-through Cooling Water System: A system designed to withdraw water from a natural or other

water source, run it through a facility for contact and/or non-contact cooling purposes, and then discharge

it to a water body without recirculation. Once-through cooling water systems may use canals/channels,

ponds, or non-recirculating towers to dissipate waste heat from the water before it is discharged. 

Operating Days: The total number of days (1 day = 24 hours) a cooling water intake structure operated

during a specified time period, excluding any days the cooling water intake structure was offline for routine

maintenance or otherwise was not operational. A partial day (i.e., operations of less than 24 hours) does

not constitute an operating day and should not be counted as such.

Passive Intake System: Devices placed at or near the opening of an intake structure that, with little or no

mechanical activity, stops debris and/or organisms from entering a facility’s water system. Most passive

intake systems achieve very low withdrawal velocities at the screening medium.

Planned or Under Construction: Cooling water intake structures for which funds have been authorized

and are expected to go into commercial service within the next 7 years. It does not include structures that

are presently operational, temporarily offline, permanently offline, or operating under test conditions.
Glossary

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures G-5

Point Source: Any discernible, confined, and discrete conveyance, including but not limited to, any pipe,

ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding

operation, landfill leachate collection system, vessel or other floating craft from which pollutants are or

may be discharged. The term does not include return flows from irrigated agriculture or agricultural storm

water run off. See also 40 CFR 122.2.

Pond: A still body of water that is generally smaller than a lake.

Presently Operating: Cooling water intake structures or cooling water systems currently taking in water

for cooling purposes.

Privately-Owned Treatment Works: A treatment works that is not publicly owned and whose owner

is not the operator of the works. The term includes any device and system used to handle and/or treat

liquid wastes.

Process Operations: Industrial activities that directly result in the production of a facility’s primary

output.

Production Line: Each of the successive steps taken at a facility to produce a product, except the

production line’s use of electricity.

Publicly-Owned Treatment Works: A treatment works owned by the State or municipality. The term

refers to any devices and systems used to store, treat, recycle, and reclaim municipal sewage or industrial

wastes of a liquid nature. It also refers to sewers, pipes, and other conveyances only if they convey

wastewater to a POTW treatment facility.

Recirculating Cooling Water System: A system designed to withdraw water from a natural or other

water source to support contact and non-contact cooling uses within a facility. The water is generally sent

to a cooling canal/channel, lake, pond, or tower in order for waste heat to be dissipated. (Some facilities

may divert the “waste heat” to other process operations.) Once accomplished, the water is returned to the

system. New source water (called make-up water) is added to the system to replenish losses due to

blowdown, drift, and evaporation. For the purposes of the questionnaire, the term does not include nonrecirculating cooling canals/channels, ponds, or towers.

Reservoir: A natural or constructed basin where water is collected and stored and from where it is piped

for various uses. 

Standard Industrial Classification (SIC) Code: A national classification system that organizes business

entities into production-based and market-based categories identified by a 4-digit code. There are three

levels of SIC codes: primary, secondary, and tertiary. Primary SIC codes are assigned based on the

principal product or group of products produced or distributed by an establishment or for services rendered

by the facility. Additional SIC codes are assigned for any secondary and tertiary products produced or for

services rendered by an establishment. 
Glossary

G-6 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

Figure 3. Cross Section Example of a Submerged Intake Structure Flush With Shoreline

Plan View Cross Section

Figure 4. Example of a Submerged Offshore Intake Structure

Steam-Electric Generating Unit: A generating unit in which the prime mover is a steam turbine. The

turbines convert thermal energy (steam or hot water) produced by generators or boilers to mechanical

energy or shaft torque. This mechanical energy is used to power electric generators, which convert the

mechanical energy to electricity, including combined cycle electric generating units.

Storm Water: The term refers to rainfall runoff, snow melt runoff, and surface runoff and drainage.

Submerged Intake Structure Flush with the Shoreline: An intake structure where the opening is evenly

aligned with the shoreline and that always draws water from substantially below the surface of the water

body. See Figure 3 for a graphical view of a submerged intake structure flush with the shoreline.

Submerged Offshore Intake Structure: An intake structure which extends from a facility outward into

a water body. The intake opening is submerged and the water is always withdrawn from below the surface

of the water body. See Figure 4 for a graphical view of a submerged offshore intake structure.

Surface Intake Structure Flush with the Shoreline: An intake structure flush with the shoreline which

withdraws water from or near the surface of the water body. See Figure 5 for a graphical view of a surface intake

structure flush with the shoreline.
Glossary

Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures G-7

Plan View Cross Section

Figure 5. Example of a Surface Intake Structure Flush with Shoreline

Surface Water: Bodies of water including lakes, ponds, or reservoirs; non-tidal rivers or streams; tidal

rivers; estuaries; fjords; oceans; and bays/coves.

Temporarily Offline: Cooling water systems that are presently out of commercial service but are

expected to return. The category includes systems on inactive reserve and systems deactivated (i.e.,

systems not normally used but available for service).

Tidal Rivers: Rivers which receive regular, significant inflows of water from oceans or bays due to tidal

action.[NOTE: For the purposes of this questionnaire, the term “tidal river” means the seaward most reach of a river/stream where the

salinity is < 0.5 ppt at a time of annual low flow its surface elevation responds to the effects of coastal lunar tides. Where the river salinity

exceeds 0.5 ppt, the respective river reach will be viewed as estuarine.]

Trash Rack: See Bar Rack.

Typical Calendar Year: A year in which the facility and its cooling water intake structures are operated

in a normal, routine, regular, or otherwise standard fashion.

Water Body: Any number of potential sources of intake water for cooling water intake structures.

Includes municipal water sources, ground well water, oceans, lakes, reservoirs, rivers, and estuaries.

Waters of the United States (U.S.): All waters which are currently used, were used in the past, or may

be susceptible to use in interstate or foreign commerce, including all waters subject to the ebb and flow

of the tide. Waters of the United States include, but are not limited to, all interstate waters and intrastate

lakes, rivers, streams (including intermittent streams), mudflats, wetlands, sloughs, prairie potholes, wet

meadows, playa lakes, or natural ponds. The definition includes waters which are or could be used by

interstate or foreign travelers for recreation or other purposes and those waters from which fish or shellfish

are or could be taken and sold in interstate or foreign commerce or which are used or could be used for

industrial purposes by industries in interstate commerce. Waste treatment systems, including treatment

ponds or lagoons designed to meet the requirements of the CWA are not waters of the U.S. See 40 CFR 122.2

for a more complete definition.
Glossary

G-8 Industry Short Technical Questionnaire: Phase II Cooling Water Intake Structures

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FORM 

APPROVED 

 OMB

CONTROL 

N

O.

____ - ____

 EXPIRATION 

DATE: ___/___/___

Questionnaire No: __ __ __ __ __ __

Industry Screener Questionnaire:

Phase I Cooling Water Intake Structures

October 1998 (DRAFT FINAL)

U.S. Environmental Protection Agency (EPA)

Office of Wastewater Management

Washington, DC

Notice of Estimated Burden

EPA estimates that completion of the entire 1998 Industry Screener Questionnaire:

Phase I Cooling Water Intake Structures will require an average of 10 hours per facility. 

This estimate includes time for reading the instructions and reviewing the information

necessary to respond to the questionnaire form. Any comments regarding EPA’s need

for the information, the accuracy of the provided burden estimate, and suggested

methods for reducing respondent burden (including the use of automated collection

techniques) should be addressed to: Director, Regulatory Information Division,

Office of Policy, Mail Code 2137, U.S. EPA, 401 M Street, SW, Washington, DC 

20460. Please include the OMB Control Number, listed in the left-hand margin on this

page, with any correspondence.

Questionnaire No: __ __ __ __ __ __

Table of Contents

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) i

Table of Contents

Page No.

Certification Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

General Information and Instructions ............................................... 3

Why This Questionnaire? .................................................... 3

Authority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Who Must Complete This Questionnaire? ........................................ 4

Where to Get Help? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Certification Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

When and How to Return the Questionnaire? ..................................... 5

Confidential Business Information .............................................. 6

Specific Instructions for Completing the Questionnaire .............................. 7

Section 1: General Facility Information ............................................. 9

Section 2: General Scoping Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Section 3: Design and Operational Data for Cooling Water Intake Structures

and Cooling Water Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Section 4: Facility and Firm-Level Economic Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Section 5: Facility Production and Electricity Generation Data . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-1
Questionnaire No: __ __ __ __ __ __

ii EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

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Questionnaire No: __ __ __ __ __ __

Certification Statement

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 1

Certification Statement

Instructions

The individual responsible for directing or supervising the preparation of the enclosed 1998 Industry Screener

Questionnaire: Phase I Cooling Water Intake Structures must read and sign the Certification Statement below

before returning both documents to the U.S. Environmental Protection Agency. The certifying official must be a

responsible corporate official or his or her duly authorized representative. The Certification Statement must be

completed and submitted in accordance with the requirements contained in the Code of Federal Regulations at

40 CFR 122.22.

I certify under penalty of law that the attached questionnaire was prepared under my

direction or supervision in accordance with a system designed to ensure that qualified

personnel properly gathered and evaluated the information submitted. The information

submitted is, to the best of my knowledge and belief, accurate and complete. In those cases

where we did not possess the requested information, we have provided best engineering

estimates or judgments. We have, to the best of our ability, indicated what we believe to be

company confidential business information as defined under 40 CFR Part 2, Subpart B. We

understand that we may be required at a later time to justify our claim in detail with respect

to each item claimed confidential. I am aware that there are significant penalties for

submitting false information, including the possibility of fines and imprisonment as explained

in Section 308 of the Clean Water Act (33 U.S.C., Section 1318).

Signature of Certifying Official Date

 ( )

Printed Name of Certifying Official Telephone No.

Title of Certifying Official
Questionnaire No: __ __ __ __ __ __

Certification Statement

2 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

This Page Intentionally Left Blank
Questionnaire No: __ __ __ __ __ __

General Information and Instructions

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 3

General Information and Instructions

Why This Questionnaire?

The U.S. Environmental Protection Agency (EPA) is currently developing regulations under Section 316(b)

of the Clean Water Act, 33 U.S.C., Section 1326(b). Section 316(b) provides that any standard established

pursuant to Sections 301 or 306 of the Clean Water Act (CWA) and applicable to a point source will

require that the location, design, construction, and capacity of cooling water intake structures reflect the

best technology available (BTA) for minimizing adverse environmental impact.

Answers to the enclosed technical questionnaire will help EPA identify the types and sizes of industrial

facilities that are subject to Section 316(b). After reviewing the results of the screener questionnaire, EPA

will administer a more detailed technical questionnaire to a subset of in-scope facilities to characterize the

design, operation, and management of their cooling water intake structures and cooling water systems.

Some basic economic data will also be requested in this future survey.

Please note that data from the screener and detailed questionnaires are not intended to identify whether a

specific facility’s cooling water intake structures are having an adverse impact on the environment.

Moreover, questionnaire responses are not intended to identify whether a specific facility is employing

BTA with respect to minimizing adverse environmental impacts from cooling water intake structures,

though they may help EPA determine BTA options for various classes of facilities. The questionnaires are

simply tools for characterizing some of the following: type and nature of facilities using cooling water,

specific uses of cooling water, design and configuration of cooling water systems and cooling water intake

structures, types of technologies being used at intake structures, and whether facilities have previously

evaluated the environmental impacts of their cooling water intake structures. Data from the questionnaires

will feed into other research being conducted by EPA that is more specifically designed to determine the

nature of adverse impacts and the types of control technologies that might minimize such impacts. All of

EPA’s research efforts will feed the development of regulatory options, some of which will subsequently

be fashioned into a proposed rulemaking that will be put forth for public review and comment.

The enclosed screener questionnaire consists of five main sections. Section 1 requests general facility

information, such as facility name, location, and Standard Industrial Classification (SIC) codes. Section 2

requests information from facilities on such topics as National Pollutant Discharge Elimination System

(NPDES) permit status, whether cooling water is used and, if so, whether it is withdrawn by the facility

from surface water. Finally, information is requested on the types of activities for which the facility uses

cooling water directly withdrawn from surface water. The purpose of these two sections is to help EPA

determine the nature of facilities within an industry group that use cooling water. Additionally, the

information will help EPA identify (i.e., “screen”) facilities that are not subject to Section 316(b). These

out-of-scope facilities will be exempted from completing the remaining sections of the questionnaire.

Moreover, they will be excluded from the pool of facilities that will be sampled to receive the detailed

questionnaire.

Facilities that will be considered “out-of-scope” for receiving the detailed questionnaire will include those

that (1) are not point sources as defined under Section 502(14) of the Clean Water Act (33 U.S.C.,

1362(14)), (2) do not use cooling water as that term is defined for the purposes of this questionnaire, or

(3) do not receive any of their cooling water supply from a surface water source.
Questionnaire No: __ __ __ __ __ __

General Information and Instructions

4 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Section 3 requests facilities to provide basic design and operational data on their cooling water intake

structures and cooling water systems. This information will help EPA ensure that it sends the detailed

questionnaire to an appropriate number of facilities representing the diverse array of design configurations

possible. Many of the questions are in multiple-choice format. The following types of information are

being requested: total number of cooling water intake structures, originating sources of cooling water, total

cooling water intake flow rates and operating days for a typical calendar year, total number of cooling

water systems and their respective configurations, placement of cooling water intake structures in surface

water bodies, control technologies being used at intake structures, and whether facility or firm owners have

ever conducted or commissioned environmental or ecological studies of the potential impacts of any of

their cooling water intake structures.

Section 4 asks for information regarding the estimated numbers of full-time equivalent employees and the

estimated annual sales revenue for the Facility’s Fiscal Year 1997. For facilities that are owned by a larger

firm, this information is requested for the parent firm as well. This information will enable EPA to send

the detailed questionnaire to a broad range of facilities, based on their size. It is especially important that

EPA collect sufficient data on a representative sample of qualified small businesses to enable the Agency

to comply with the Regulatory Flexibility Act (RFA). This information will also help EPA design its

approach for conducting economic impact analyses of Section 316(b) regulatory options, once these

options are identified.

Finally, Section 5 requests information from facilities that use cooling water directly withdrawn from

surface water to generate electricity. These facilities are asked to indicate the gross amount of electricity

they have generated and their total annual sales of electricity for a recent and typical fiscal year. This

information will help EPA classify in-scope facilities according to their status as electricity generators.

The economic portion of the detailed questionnaire will be tailored to these specific classifications. Given

the significant recent changes in the electricity industry, and the importance of cooling water in electricity

generation, EPA wants to ensure that it has a full understanding of the potential impacts of regulatory

options on electricity generators including nonutility and industrial generators. The economic data from

both the screener and the detailed questionnaires will support EPA’s economic impact analyses of Section

316(b) regulatory options.

Authority

EPA has authority to administer this questionnaire under Section 308 of the CWA (33 U.S.C., Section

1318). Late filing of the questionnaire, or failure to follow any related EPA instructions, may result in civil

penalties, criminal fines, or other sanctions provided by law.

Who Must Complete This Questionnaire?

Before issuing this screener questionnaire, EPA identified approximately 18 major industry groups thought

to use cooling water, other than traditional steam electric utilities. EPA ultimately narrowed its research

focus to steam electric nonutility power producers and four industrial categories for which data showed

large quantities of cooling water use. The four major industrial categories include the following: Paper
Questionnaire No: __ __ __ __ __ __

General Information and Instructions

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 5

 Toll-Free Help Line

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures

Science Applications International Corporation (SAIC)

Available weekdays, 9:00 a.m. to 5:00 p.m., Eastern Time

Toll-Free Phone No.: 1-877-316-COOL (1-877-316-2665)

Industry Screener Questionnaire: Phase I Cooling Water Intake Structures

U.S. Environmental Protection Agency 

c/o SAIC (MS 1-11-12)

1710 Goodridge Drive

McLean, VA 22102-3799

and Allied Products (SIC 26), Chemical and Allied Products (SIC 28), Petroleum and Coal Products (SIC

29), and Primary Metals (SIC 33).

EPA has not identified the specific facilities within each of these target groups that use cooling water, nor

does the Agency know the degree to which cooling water is used within and across the groupings.

Consequently, EPA is forwarding this screener questionnaire to a subset of steam electric nonutility power

producers and facilities within the four targeted industry groups. Information obtained from the screener

questionnaire will enable EPA to direct its detailed industry questionnaire to a representative sample of

only those facilities identified through the screener questionnaire that withdraw cooling water from surface

water and are point sources. Please note that although EPA is limiting the target audience to receive the

screener and detailed questionnaires to the industry groups mentioned in this section, this action should

not be presumed to mean that a Section 316(b) regulation would not be applicable to other industry groups.

Where to Get Help?

Certification Statement

A responsible corporate official or his or her duly authorized representative must verify the accuracy of

the facility’s responses to the screener questionnaire by reading and signing the enclosed Certification

Statement. This statement needs to be returned to EPA along with the completed questionnaire.

When and How to Return the Questionnaire?

You must complete and return the screener questionnaire and Certification Statement to EPA within

45 calendar days after receiving the materials at your facility or firm. Please return your materials, in the

enclosed self-addressed envelope, to:

NOTE: Please keep a copy of the completed screener questionnaire and Certification Statement for your records.
Questionnaire No: __ __ __ __ __ __

General Information and Instructions

6 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Confidential Business Information

You may assert a business confidentiality claim for some or all of your responses to the screener

questionnaire, as described in 40 CFR 2.203(b) (see full text below). Complete regulations governing

confidentiality of business information (CBI) appear in 40 CFR, Part 2, Subpart B.

40 CFR 2.203(b) Method and time of asserting business confidentiality claim. A business which is submitting

information to EPA may assert a business confidentiality claim covering the information by placing on (or attaching

to) the information, at the time it is submitted to EPA, a cover sheet, stamped or typed legend, or other suitable form

of notice employing language such as ‘trade secret,’ ‘proprietary,’ or ‘company confidential.’ Allegedly confidential

portions of otherwise nonconfidential documents should be clearly identified by the business, and may be submitted

separately to facilitate identification and handling by EPA. If the business desires confidential treatment only until

a certain date or until the occurrence of a certain event, the notice should so state.

You may claim confidentiality of business information for any of your responses by checking () the

box to the left of certain questions or by one of the methods described above. Alternatively, all questions

in this questionnaire with a CBI check box next to them may be globally claimed confidential by checking

the box at the end of this paragraph. If you do not check the box at the end of this paragraph, any

individual response where CBI is not checked may be made available to the public by EPA without further

notice. Please note that you may be required to justify any claim of confidentiality at a later time.

All eligible data are CBI. 

If EPA reveals information covered by a claim of confidentiality, the Agency will strictly follow the

requirements and procedures set forth in 40 CFR Part 2, Subpart B. Overall, EPA may reveal submitted

information protected by a CBI claim only to other employees, officers, or authorized representatives of

the United States who are responsible for implementation of the Clean Water Act. EPA has extensive

standard operating procedures in place to handle, store, and transmit CBI data and has a long history of

successfully managing this type of information. Personnel expected to handle CBI data are also required

by the Agency to be trained and certified.

Agency contractors will have access to CBI data so that work can be performed under their contracts

relative to the Section 316(b) rulemaking. All EPA contracts state that contractor employees must use CBI

data only to perform work specified by EPA. The information is not to be shown to anyone, other than

EPA officials, without prior written approval having been received from the affected business or from

EPA’s legal office.
Questionnaire No: __ __ __ __ __ __

General Information and Instructions

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 7

Specific Instructions for Completing the Questionnaire

Facility or firm personnel most knowledgeable of the subject areas covered by the

questions posed should complete the questionnaire:

• Please answer the questions in sequence unless you are directed to SKIP

forward in the questionnaire. This is important since many questions are only

applicable to some respondents.

• Clearly mark responses to all questions with a black or blue ink pen, or type

responses in the spaces provided.

• For each question, please read all instructions and definitions carefully.

• Most key terms are defined at the point where they first appear in the questionnaire.

They are also defined in the Glossary, which is attached to the back of the

questionnaire. Before responding to a given question, please read the

definitions of any key terms used and any question-specific instructions.

• Please use the units specified when responding to questions requesting

measurement data (e.g., gallons per day).

• Please provide responses on the basis of the time period(s) cited in each

question. Note that the time periods under which information is requested varies

from question to question.

• Please indicate whether information provided in any of your responses is

confidential. Such information will be protected under EPA’s confidentiality

procedures. To claim a particular response as containing confidential business

information, simply check () the box found to the left of the applicable question,

if one is provided, or follow the other identification procedures described on the

previous page and found under 40 CFR 2.203(b).
Section Questionnaire No: __ __ __ __ __ __

1 General Facility Information

8 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Name of Facility

Mailing Address

City, State ZIP

Telephone Number

Yes (1) SKIP TO Q.2

No (2)

Section 1: General Facility Information

1. (a) Does the above mailing label reflect the facility’s full legal

name and address?

(b) Please provide the complete legal name and mailing address

for the facility:

Name of Facility: _____________________________ (1)

Street Address: _______________________________ (2)

P.O. Box (if applicable): _______________________ (3)

City, State ZIP: ______________________________ (4)

Telephone Number: ( ) _____________________ (5)

DUNS Number: __ __ – __ __ __ – __ __ __ __ (6)

[ Check () here if none.] 

2. Please identify the person responsible for questionnaire

responses, and please provide the appropriate title and contact

information:

Name: __________________________________________ (1)

Title: ___________________________________________ (2)

Employer (full legal name): ________________________ (3)

Relationship to Facility (e.g., domestic parent

firm, contractor, etc.):______________________________ (4)

Telephone No: ( )_________ (5a) Fax No: ( ) ________ (5b)

Best Time to Contact: _____________________________ (6)
Questionnaire No: __ __ __ __ __ __ Section

General Facility Information 1

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 9

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

3. Is the facility presently in commercial service?

4. What are the four-digit Standard Industrial Classification

(SIC) codes associated with the facility’s main lines of business?

[Please use the SIC codes contained in the Office of Management and Budget’s

1987 Standard Industrial Classification Manual. This listing can also be found at

the following Internet site: www.osha.gov/cgi-bin/sic/sicser5.]

NOTE: Since the 1930s, SIC codes have been used to facilitate the

collection, tabulation, presentation, and analysis of data relating to U.S.

business establishments by Federal statistical agencies (e.g., Office of

Management and Budget or OMB, Bureau of the Census, etc.). The system

was last updated by OMB in 1987. It was recently replaced by the North

American Industry Classification System (NAICS) in 1997; however, it

continues to be used by many Federal agencies. EPA believes it would be

unnecessarily confusing to ask facilities to classify themselves using NAICS

codes for the purposes of this questionnaire.

Primary __ __ __ __ (1)

Secondary __ __ __ __ (2)

Other __ __ __ __ (3a) __ __ __ __ (3b) __ __ __ __ (3c)
DEFINITION

DEFINITIONS

Section Questionnaire No: __ __ __ __ __ __

2 General Scoping Data

10 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

For the purposes of this questionnaire, the term “cooling

water” refers to both contact and noncontact cooling

water, including water used for air conditioning, equipment cooling,

evaporative cooling tower makeup, and dilution of effluent heat content.

The intended use of the cooling water is to absorb waste heat rejected from

the process or processes employed or from auxiliary operations on the

facility’s premises.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification For the purposes of this questionnaire, Statement. surface water

includes lakes, ponds, or reservoirs; nontidal rivers or

streams; tidal rivers; estuaries; fjords; oceans; and bays/coves. A cooling

water intake structure is the total structure and associated technologies

used to direct water from a water body into a facility up to the point of the

first intake pump or series of pumps. The intended use of the cooling water

is to absorb waste heat rejected from processes employed or from auxiliary

operations on the facility’s premises. If a facility has an intake structure that

withdraws water for other purposes in addition to cooling, the entire intake

structure should be considered a cooling water intake structure for the

purposes of this questionnaire.

Section 2: General Scoping Data

5. Does the facility presently have or is the facility presently in the

process of obtaining a National Pollutant Discharge

Elimination System (NPDES) permit?

NOTE: NPDES permits are required to be held under Section 402 of the

Clean Water Act (33 U.S.C. 1342 et seq.) by any point source that

discharges pollutants directly to waters of the United States. Facilities that

discharge 100 percent of their effluent (including storm water) to publiclyowned treatment works, privately-owned treatment works, and/or to ground

water injection wells should answer “No” to this question.

CBI? 6. Since January 1, 1995, has cooling water been used for contact

or noncontact cooling purposes at the facility? [Please consider all

cooling water used regardless of the type of water source or provider from which

it has been obtained.]

CBI? 7. Since January 1, 1995, has the facility directly obtained any

portion of its cooling water from a surface water source?

NOTE: In order for a facility to directly withdraw cooling water from

surface water, it must have an intake structure.
Questionnaire No: __ __ __ __ __ __ Section

General Scoping Data 2

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 11

directly withdrawn from surface water since January 1, 1995? [Please check () all applicable activities.]

CBI? 8. In the matrix below, please indicate the activities for which your facility has used cooling water

Activities Requiring Cooling Water Directly Withdrawn by Facility From Surface Water

Since January 1, 1995

Item

No. Activities

8(a) Electricity Generation (including equipment cooling) ................................................... 

[ Check () here if any of facility’s generating units that use cooling water are part of a combined cycle unit.]

Definition: For the purposes of this questionnaire, a combined cycle unit is an electric generating unit that has one

or more gas turbines or internal combustion engines and one or more steam boilers. Part of the required input to the

boiler(s) is provided by the exhaust gas (waste heat) of the combustion turbines(s).

8(b) Air Conditioning (Cooling and Heating of Indoor Air) ................................................ 

Definition: For the purposes of this questionnaire, air conditioning refers to the process and equipment used to

control the temperature and humidity of indoor air. Cooling water is used in some air conditioning systems.

8(c) Production Line (or Process) Contact or Noncontact Cooling ......................................... 

(for uses other than electricity generation and excluding air conditioning)

Definition: For the purposes of this questionnaire, the term production line refers to each of the successive steps

taken at a facility to produce a product, except the production line’s use of electricity.

8(d) Other (please describe below): .................................................................... 
Section Questionnaire No: __ __ __ __ __ __

3 Design and Operational Data

12 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

 ___________

Section 3: Design and Operational Data for Cooling Water Intake Structures

and Cooling Water Systems

CBI? 9. How many intake structures does the facility have that directly withdraw surface water to support, at

least in part, contact or noncontact cooling operations within the facility? [Consider only those intake

structures presently operating or temporarily offline (i.e., expected to operate again in the future). Do not include intake

structures planned or under construction or permanently offline.] ........................ 

CBI? 10. For each intake structure reported under Q.9, please indicate in the matrix below all surface water

sources from which the facility has directly withdrawn contact or noncontact cooling water since

January 1, 1995 (or from the date the intake structure became operational if that date was later than

January 1, 1995). [Please check () all water sources that apply per intake structure. If cooling water has been withdrawn

from an intake canal/channel or constructed intake embayment/bay/cove, please indicate the originating source(s) of the water.]

Matrix 10 Matrix ___ of ___

Originating Surface Water Sources of Cooling Water Since January 1, 1995

by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your facility has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Water

Source

Code

Originating Surface Water Source

[Please check () all sources that apply per CWIS.]

Note: If cooling water has been withdrawn from CWIS _______________ CWIS _______________

an intake canal/channel or constructed intake embayment/bay/cove,

please indicate the originating source of the water. name or no. of CWIS.] name or no. of CWIS.]

[Please indicate facility-designated [Please indicate facility-designated

10(a) Lake, Pond, or Reservoir

Definitions: For the purposes of this questionnaire, a

lake is an expanse of water, usually fresh, surrounded

by land or by land and a manmade retainer. Lakes may

be fed by rivers, streams, springs, and/or local

precipitation. A pond is a still body of water generally

smaller than a lake. A reservoir is an artificial body of

surface water retained by a dam.

NOTE: These terms are not to be confused with the terms

cooling lake or cooling pond. The primary purpose of these

water bodies is to absorb waste heat rejected from a facility’s

wastewater discharge.

(1) (1)

10(b) Nontidal River or Stream

Definition: For the purposes of this questionnaire, a

river or stream is nontidal when no significant inflow of

water from an ocean or bay due to tidal action occurs.

(2) (2)

See next page for continuation of Matrix 10.
Questionnaire No: __ __ __ __ __ __ Section

Design and Operational Data 3

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 13

Matrix 10 (Continued) Matrix ___ of ___

Originating Sources of Cooling Water Since January 1, 1995 by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your facility has more than this number of intake structures, please copy the matrix and change

the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix

sheets as Matrix “1 of 3,” “2 of 3,” etc.

Water

Source

Code

Originating Water Source

[Please check () all sources that apply per CWIS.]

Note: If cooling water has been withdrawn from CWIS _______________ CWIS _______________

an intake canal/channel or constructed intake embayment/bay/cove, 

please indicate the originating source of the water. name or no. of CWIS.] name or no. of CWIS.]

[Please indicate facility-designated [Please indicate facility-designated

10(c) Tidal River

Definition: For the purposes of this questionnaire, a

tidal river is the portion of river above the river’s mouth

that receives a regular, significant inflow of water from

an ocean or bay due to tidal action.

(3) (3)

10(d) Estuary

Definition: For the purposes of this questionnaire, an

estuary is a semi-enclosed coastal body of water that

has a free connection with the open sea and is strongly

affected by tidal action. In an estuary, sea water is

mixed (and usually measurably diluted) with fresh water

inflow from rivers.

NOTE: The Chesapeake Bay and the San Francisco Bay are

examples of estuaries even though the term bay appears in

their names.

(4) (4)

10(e) Ocean

Definition: For the purposes of this questionnaire, an

ocean is defined as marine open coastal waters other

than those water bodies classified as estuaries,

embayments, or fjords, which are semi-enclosed and

have readily identifiable geographic boundaries.

(5) (5)

10(f) Bay or Cove (natural, saline water)

Definition: For the purposes of this questionnaire, a

bay or cove is an inlet created when the shoreline of a

water body is indented. Bays are generally larger than

coves but are smaller than gulfs. Coves are generally

sheltered. [Do not mark this response if the bay or cove

is constructed; see column note above.]

(6) (6)

10(g) Bay or Cove (natural, fresh water)

[See definition and instructions directly above.]

(7) (7)

CBI? 11. Please complete the matrix on the next page for each of the facility’s cooling water intake structures

reported under Q.9. In this matrix, EPA is requesting facilities to provide, for a typical calendar year

since January 1, 1995, the total number of days the structure was operational (Item a), its average daily

intake flow rate in gallons per day (GPD) (Item b), and the surface water sources used (Item c). [Please

provide actual data to the extent they are readily available; otherwise, best engineering estimates may be provided.]
DEFINITION

Section Questionnaire No: __ __ __ __ __ __

3 Design and Operational Data

14 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

For the purposes of this questionnaire, a typical calendar year is one in which the facility and its

cooling water intake structures are operated in a normal, routine, regular, or otherwise standard

fashion. The data provided should be similar to data from other recent calendar years of operation or from projected, near

future years of operation (i.e., 1999 to 2001).

Total No. of Operating Days, Average Daily Intake Flow Rate, and Originating Water Matrix ___ of ___

Sources for a Typical Calendar Year Since January 1, 1995 by Cooling Water Intake Structure (CWIS)

Response space has been provided for two CWISs. If your facility has more than this number of intake structures, please copy the matrix and

change the CWIS code names or numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual

matrix sheets as Matrix “1 of 3,” “2 of 3,” etc.

Item

No.

Data Requested

[For each CWIS, please provide responses for the

same typical calendar year for each item in the matrix. 

Actual data should be provided if available; otherwise, [Please insert same no. or name as [Please insert same no. or name as

best engineering estimates may be provided.] under Matrix 10, page 12.] under Matrix 10, page 12.]

CWIS _______________ CWIS _______________

11(a) No. of Operating Days for Each CWIS in

Typical Calendar Year

Definition: For the purposes of this questionnaire,

the term operating days refers to the total number

of days (1 day = 24 hours) a cooling water intake

structure was operational during a calendar year,

excluding any days the intake structure was offline

for routine maintenance or otherwise was not

operational. Partial days (any day in which

operations were less than 24 hours) should not be

counted as operational days.

____________________days ____________________days

11(b) Average Daily Intake Flow Rate (in GPD) for Each

CWIS in Typical Calendar Year ____________________GPD ____________________GPD

11(c) Originating Surface Water Source(s) from Which

Each CWIS Withdrew Cooling Water in Typical

Calendar Year [Please use codes listed in Matrix 10 on

page 12 for surface water sources. If multiple water

sources were used, please separate codes by a comma.]

CBI? 12. (a) In the space provided on the next page, please indicate the total number of cooling water systems

that are presently operating or temporarily offline (expected to operate again in the future) at the

facility. Do not consider cooling water systems that are planned or under construction or

permanently offline.

NOTE: Please consider your facility as having only one cooling water system unless your facility has systems that

are physically separated (e.g., have separate water intake and outlet structures) and can be operated independently.

If the facility has several intake structures, but only one outlet structure, or vice-versa, please consider the facility

as having only one cooling water system. An intake structure with multiple bays counts as one intake structure.
DEFINITION

Questionnaire No: __ __ __ __ __ __ Section

Design and Operational Data 3

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 15

For the purposes of this questionnaire, a cooling water system is a system that provides water to/from

a facility to transfer heat from equipment or processes therein. The system includes, but is not limited

to, water intake and outlet structures, cooling towers, ponds, pumps, pipes, and canals/channels. For facilities that use

surface water for cooling, the system begins at the first barrier to ingress and/or egress by fish and other aquatic wildlife

(e.g., at the trash rack, etc.) and ends at the discharge outlet(s).

16 Total Number of Cooling Water Systems ............................ 

CBI? (b) Please provide the general profile data requested in the matrix below for each of the facility’s

cooling water systems. [Please check () all applicable design configuration types per system.]

Profile of Facility’s Cooling Water Systems (CWSs) Matrix ___ of ___

Response space has been provided for two CWSs. If your facility has more than this number of systems, please copy the matrix and change the

CWS code numbers as appropriate. Insert any additional matrices into this section of the questionnaire, and identify individual matrix sheets as

Matrix “1 of 3,” “2 of 3,” etc.

Data Requested CWS #1 CWS #2

Configuration of CWS [Please check () all

applicable configuration types per system.]

NOTE: Refer to the Glossary for definitions

of the design configurations and system

components listed.

Once-Through CWSs Once-Through CWSs

Once-Through Only ............. (1)

Once-Through with Nonrecirculating

Cooling Canals/Channels, Lakes Cooling Canals/Channels, Lakes

or Ponds ...................... (2)

Once-Through with Nonrecirculating

Cooling Towers . . . . . . . . . . . . . . . . . (3)

Once-Through Only ............. (1)

Once-Through with Nonrecirculating

or Ponds ...................... (2)

Once-Through with Nonrecirculating

Cooling Towers . . . . . . . . . . . . . . . . . (3)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . . . . . (4)

Recirculating with Cooling Canals/

Channels, Lakes, or Ponds ........ (5)

Recirculating With Cooling Towers. . . (6)

Recirculating CWSs

Recirculating Only . . . . . . . . . . . . . . . (4)

Recirculating with Cooling Canals/

Channels, Lakes, or Ponds ........ (5)

Recirculating With Cooling Towers. . . (6)

Other ........................ (7)

(please describe below): (please describe below):

Other ........................ (7)
Section Questionnaire No: __ __ __ __ __ __

3 Design and Operational Data

16 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

CBI? 13. Which of the following terms best describe the configuration of your facility’s intake structures (as

reported under Q.9 above) that are being used to withdraw some portion of surface water for contact

or noncontact cooling purposes? [Please check () all design configurations that apply.]

NOTE: Schematics of the design configurations listed can be found in the Glossary accompanying the questionnaire.

Configuration of Facility’s Cooling Water Intake Structures

Item

No. Design Configurations

[Please check () all design configurations that apply.]

13(a) Intake Canal or Channel (natural or constructed) ...................................................... 

Definition: For the purposes of this questionnaire, an intake canal or channel is a channelized conduit that directs water

through screens or other filtering devices up to the intake pump or series of pumps.

13(b) Submerged Intake Structure Flush with Shoreline .................................................... 

Definition: For the purposes of this questionnaire, a submerged intake structure flush with the shoreline is an intake

structure whose opening is closely aligned with the shoreline and that always withdraws water from below the surface of

the water body.

13(c) Surface Intake Structure Flush with Shoreline ....................................................... 

Definition: For the purposes of this questionnaire, a surface intake structure flush with the shoreline is an intake

structure whose opening is evenly aligned with the shoreline and that generally withdraws water from the surface of a water

body.

13(d) Intake Embayment, Bay, or Cove (natural or constructed) ............................................... 

Definition: For the purposes of this questionnaire, an intake embayment, bay, or cove is a natural or constructed inlet

along the shoreline of a water body that serves to direct water through screens or other filtering devices up to the intake

pump or series of pumps.

13(e) Submerged Offshore Intake Structure .............................................................. 

Definition: For the purposes of this questionnaire, a submerged offshore intake structure is an intake structure that

extends from a facility outward into a water body. The intake opening is submerged, and the water withdrawn is always

from below the surface of the water body.

13(f) Other ......................................................................................... 

[Please briefly describe the configuration of any cooling water intake structure that does not fit the above categories and

explain why it is unique.]
Questionnaire No: __ __ __ __ __ __ Section

Design and Operational Data 3

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 17

CBI? 14. What types of technologies are being used at the facility’s intake structures, as reported under Q.9, that

are intended to protect the facility’s cooling water systems and/or reduce environmental impacts posed

by the intake structures themselves? [Please check () all technology categories that apply.]

Technology Types Being Used at Facility’s Cooling Water Intake Structures

Item

No. Control Technology Types

[Please check () all technology categories that apply.]

14(a) Fish Diversion or Avoidance Systems .............................................................. 

Definition: For the purposes of this questionnaire, fish diversion or avoidance systems are mechanisms designed to

divert or induce fish to swim away from a water intake structure.

Examples: Louver Barrier Velocity Cap Fish Net Barrier Air Bubble Barrier Electrical Barrier Light Barrier 

Sound Barrier Cable & Chain Barrier Water Jet Barrier

14(b) Passive Intake Systems .......................................................................... 

Definition: For the purposes of this questionnaire, passive intake systems are devices placed at or near the opening of

an intake structure that, with little or no mechanical activity, stop debris and/or organisms from entering a facility’s water

system. Most passive intake systems achieve very low withdrawal velocities at the screening medium.

Examples: Wedge Wire Screen Perforated Pipe Perforated Plate Radial Well or Ranney Collector Porous

Dike Artificial Filter Bed Leaky Dam

14(c) Fish Handling and/or Return Systems .............................................................. 

Definition: For the purposes of this questionnaire, a fish handling system includes any system that collects and/or

transports live organisms and debris away from an intake structure.

Examples: Fish Conveyance Systems (troughs or pipes) Fish Basket Fish Elevator (lift basket) Fish Bypass

System Fish Holding Tank

14(d) Intake Screen Systems ........................................................................... 

Definition: For the purposes of this questionnaire, intake screen systems are devices placed at or near the opening of

an intake structure to mechanically stop debris and/or organisms from entering a facility’s water system.

Examples: Revolving Drum Screen (Horizontal or Vertical) Rotating Disk Screen Fixed Screen Traveling

Screen

14(e) Other ......................................................................................... 

[Please denote any technology that does not fit one of the above technology categories and briefly describe why the

technology(ies) is/are unique.]

14(f) No Technologies ................................................................................ 
Section Questionnaire No: __ __ __ __ __ __

3 Design and Operational Data

18 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Yes (1)

No (2) SKIP TO Q.16, 

Page 19

CBI? 15. (a) Has your facility or its firm owner ever conducted or

commissioned a study of the ecological or environmental

effects of any of the facility’s intake structures that have

withdrawn surface water for contact or noncontact cooling

purposes (i.e., those intake structures reported under Q.9)?

(b) Please provide the name of the most recent study completed.

In addition, please provide the name and telephone number

of the individual(s) we should contact if we require

additional information regarding the study.

Name of Most Recent Study: ____________________ (1)

Contact Name: _______________________________ (2)

Telephone Number: ( )______________________ (3)
DEFINITION

Questionnaire No: __ __ __ __ __ __ Section

Facility and Firm-Level Economic Data 4

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 19

Yes (1)

No (2) SKIP TO Q.21, 

Page 22

For the purposes of this questionnaire, a domestic

parent firm is the highest level domestic business entity

in the facility’s organizational structure. A firm that is owned by another

U.S. firm is not a domestic parent firm. A U.S. firm that is owned by a

foreign firm is a domestic parent firm.

Section 4: Facility and Firm-Level Economic Data

CBI? 16. Please complete the matrix below with the facility’s number of

employees and total annual sales revenue for the facility’s Fiscal

Year 1997.

Full-Time Equivalent (FTE) Employees and Annual Sales Revenue for Facility

(for Facility’s Fiscal Year 1997)

Item

No. Data Requested Response

16(a) Number of FTE Employees, Including Full-Time and Part-Time Employees [You may

round to the nearest 10 employees.]

Definition: For the purposes of this questionnaire, one FTE employee equals one

person-year or 2,000 hours.

__________________

16(b) Total Annual Sales Revenue (in whole U.S. dollars) [If the facility operates as a cost

center for a larger parent firm and facility-level revenue is not available, indicate NA (for

not applicable).]

Definition: For the purposes of this questionnaire, total annual sales revenue is the

total amount of money received by a firm from sales of its products and/or services over

365 days. The value does not include gains from investments or extraordinary gains,

such as increases in owners’ equity from capital adjustments or gains from the sale or

exchange of assets.

$_________________

NA....................

17. (a) As of the last day of the facility’s Fiscal Year 1997, was the

facility owned by another entity?

CBI? (b) Please provide the complete legal name, address, and DUNS

number for the domestic parent firm that owned the facility

as of the last day of the facility’s Fiscal Year 1997.

NOTE: If the facility was owned by a joint venture or is under another

type of joint ownership, please provide the information for the owner

that held the largest share in the facility.

See next page for response area.
DEFINITION

Section Questionnaire No: __ __ __ __ __ __

4 Facility and Firm-Level Economic Data

20 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Yes (1)

No (2) SKIP TO Q.20, 

Page 21



SKIP TO Q.21, 

Page 22

For the purposes of this questionnaire, the total annual

sales of electricity is the sum of electricity sales to

ultimate consumers and sales of electricity for resale.

Name of Domestic Parent Firm: _________________ (1)

Street Address: _______________________________ (2)

P.O. Box (if applicable): ________________________ (3)

City, State ZIP: ______________________________ (4)

DUNS Number: __ __ – __ __ __ – __ __ __ __ (5)

[ Check () here if none.] 

18. What are the four-digit SIC codes associated with the domestic

parent firm’s main lines of business? [Please use the SIC codes

contained in the Office of Management and Budget’s 1987 Standard Industrial

Classification Manual. This listing can also be found at the following Internet

site: www.osha.gov/cgi-bin/sic/sicser5.]

Primary __ __ __ __ (1)

Secondary __ __ __ __ (2)

Other __ __ __ __ (3a) __ __ __ __ (3b) __ __ __ __ (3c)

19. (a) Is the domestic parent firm’s primary SIC code 4911?

CBI? (b) During the facility’s Fiscal Year 1997, what were the total

annual sales of electricity by all facilities owned by the

domestic firm (in megawatt hours or MWh)? [Please check ()

only one response.]

Less than 150,000 MWh: ......................... (1)

150,000 to 4 million MWh: ........................ (2)

More than 4 million MWh: ........................ (3)
Questionnaire No: __ __ __ __ __ __ Section

Facility and Firm-Level Economic Data 4

EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final) 21

CBI? 20. Please complete the following matrix with the domestic parent firm’s number of employees and total

annual sales revenue for the facility’s Fiscal Year 1997.

FTE Employees and Annual Sales Revenue for Domestic Parent Firm

(for Facility’s Fiscal Year 1997)

Item

No. Data Requested Response

20(a) Number of FTE Employees, Including Full-Time and Part-Time Employees

[You may round to the nearest 10 employees.] _______________________

20(b) Total Annual Sales Revenue (in whole U.S. dollars) $______________________
Gross Electricity Generated by Facility

Using Cooling Water Withdrawn Surface Water

Total Electricity Generated by Facility × Facility's Total Sales of Electricity (in kWh)

Section Questionnaire No: __ __ __ __ __ __

5 Facility Production and Electricity Generation Data

22 EPA Industry Screener Questionnaire: Phase I Cooling Water Intake Structures (Draft Final)

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

Yes (1)

No (2) STOP

If answer is No, please

stop here and return

questionnaire with a

completed Certification

Statement.

Section 5: Facility Production and Electricity Generation Data

CBI? 21. (a) Did your facility generate electricity at any time during the

facility’s Fiscal Years 1995, 1996, or 1997?

(b) Did your facility generate electricity using cooling water

directly withdrawn by the facility from surface water at any

time during the facility’s Fiscal Years 1995, 1996, or 1997?

NOTE: Cooling water may be derived from several sources and can

be commingled before being used for cooling purposes. If any portion

of commingled cooling water was derived from surface water through

the facility’s own intake structures, it should be considered cooling

water directly withdrawn from surface water for the purposes of this

questionnaire.

CBI? 22. Please provide the information requested in the matrix below for

the facility’s Fiscal Year 1997. [If FY 1997 was not a typical year in

terms of the facility’s electricity generation activities, please provide the

requested information for a typical fiscal year in the previous two years. Please

also note the fiscal year for which the data are being provided.]

Facility Electricity Generation and Sales for Facility’s Fiscal Year 1997

or Other Recent Typical Fiscal Year

Item

No. Data Requested Response

22(a) Typical Facility Fiscal Year for Which Data in Matrix Are Being Provided

[Please check () one fiscal year only.] Fiscal Year 1995 .............. (1)

Fiscal Year 1996 .............. (2)

Fiscal Year 1997 .............. (3)

22(b) Gross Electricity Generated by Facility Using Cooling Water Directly

Withdrawn by Facility from Surface Water (in kilowatt hours or kWh) ________________________ kWh

22(c) Total Annual Sales of Electricity Generated Using Cooling Water Directly

Withdrawn from Surface Water by Facility (including sales to ultimate

consumers and sales for resale (in kWh)) [Use the formula below to calculate

your response.] ________________________ kWh

 THANK YOU FOR COMPLETING EPA’S INDUSTRY SCREENER QUESTIONNAIRE: PHASE I COOLING WATER

INTAKE STRUCTURES. WE APPRECIATE YOUR COOPERATION. PLEASE RETURN THE QUESTIONNAIRE WITH A

SIGNED CERTIFICATION STATEMENT IN THE ENVELOPE PROVIDED.